elfxx-sparc.c revision 1.15 1 1.1 skrll /* SPARC-specific support for ELF
2 1.15 christos Copyright (C) 2005-2020 Free Software Foundation, Inc.
3 1.1 skrll
4 1.1 skrll This file is part of BFD, the Binary File Descriptor library.
5 1.1 skrll
6 1.1 skrll This program is free software; you can redistribute it and/or modify
7 1.1 skrll it under the terms of the GNU General Public License as published by
8 1.1 skrll the Free Software Foundation; either version 3 of the License, or
9 1.1 skrll (at your option) any later version.
10 1.1 skrll
11 1.1 skrll This program is distributed in the hope that it will be useful,
12 1.1 skrll but WITHOUT ANY WARRANTY; without even the implied warranty of
13 1.1 skrll MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 1.1 skrll GNU General Public License for more details.
15 1.1 skrll
16 1.1 skrll You should have received a copy of the GNU General Public License
17 1.1 skrll along with this program; if not, write to the Free Software
18 1.1 skrll Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 1.1 skrll MA 02110-1301, USA. */
20 1.1 skrll
21 1.1 skrll
22 1.1 skrll /* This file handles functionality common to the different SPARC ABI's. */
23 1.1 skrll
24 1.1 skrll #include "sysdep.h"
25 1.1 skrll #include "bfd.h"
26 1.1 skrll #include "bfdlink.h"
27 1.1 skrll #include "libbfd.h"
28 1.1 skrll #include "libiberty.h"
29 1.1 skrll #include "elf-bfd.h"
30 1.1 skrll #include "elf/sparc.h"
31 1.1 skrll #include "opcode/sparc.h"
32 1.1 skrll #include "elfxx-sparc.h"
33 1.1 skrll #include "elf-vxworks.h"
34 1.3 christos #include "objalloc.h"
35 1.3 christos #include "hashtab.h"
36 1.1 skrll
37 1.1 skrll /* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
38 1.1 skrll #define MINUS_ONE (~ (bfd_vma) 0)
39 1.1 skrll
40 1.1 skrll #define ABI_64_P(abfd) \
41 1.1 skrll (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
42 1.1 skrll
43 1.1 skrll /* The relocation "howto" table. */
44 1.1 skrll
45 1.1 skrll /* Utility for performing the standard initial work of an instruction
46 1.1 skrll relocation.
47 1.1 skrll *PRELOCATION will contain the relocated item.
48 1.1 skrll *PINSN will contain the instruction from the input stream.
49 1.1 skrll If the result is `bfd_reloc_other' the caller can continue with
50 1.1 skrll performing the relocation. Otherwise it must stop and return the
51 1.1 skrll value to its caller. */
52 1.1 skrll
53 1.1 skrll static bfd_reloc_status_type
54 1.1 skrll init_insn_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
55 1.6 christos void * data, asection *input_section, bfd *output_bfd,
56 1.1 skrll bfd_vma *prelocation, bfd_vma *pinsn)
57 1.1 skrll {
58 1.1 skrll bfd_vma relocation;
59 1.1 skrll reloc_howto_type *howto = reloc_entry->howto;
60 1.1 skrll
61 1.1 skrll if (output_bfd != (bfd *) NULL
62 1.1 skrll && (symbol->flags & BSF_SECTION_SYM) == 0
63 1.1 skrll && (! howto->partial_inplace
64 1.1 skrll || reloc_entry->addend == 0))
65 1.1 skrll {
66 1.1 skrll reloc_entry->address += input_section->output_offset;
67 1.1 skrll return bfd_reloc_ok;
68 1.1 skrll }
69 1.1 skrll
70 1.1 skrll /* This works because partial_inplace is FALSE. */
71 1.1 skrll if (output_bfd != NULL)
72 1.1 skrll return bfd_reloc_continue;
73 1.1 skrll
74 1.1 skrll if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
75 1.1 skrll return bfd_reloc_outofrange;
76 1.1 skrll
77 1.1 skrll relocation = (symbol->value
78 1.1 skrll + symbol->section->output_section->vma
79 1.1 skrll + symbol->section->output_offset);
80 1.1 skrll relocation += reloc_entry->addend;
81 1.1 skrll if (howto->pc_relative)
82 1.1 skrll {
83 1.1 skrll relocation -= (input_section->output_section->vma
84 1.1 skrll + input_section->output_offset);
85 1.1 skrll relocation -= reloc_entry->address;
86 1.1 skrll }
87 1.1 skrll
88 1.1 skrll *prelocation = relocation;
89 1.1 skrll *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
90 1.1 skrll return bfd_reloc_other;
91 1.1 skrll }
92 1.1 skrll
93 1.1 skrll /* For unsupported relocs. */
94 1.1 skrll
95 1.1 skrll static bfd_reloc_status_type
96 1.1 skrll sparc_elf_notsup_reloc (bfd *abfd ATTRIBUTE_UNUSED,
97 1.1 skrll arelent *reloc_entry ATTRIBUTE_UNUSED,
98 1.1 skrll asymbol *symbol ATTRIBUTE_UNUSED,
99 1.6 christos void * data ATTRIBUTE_UNUSED,
100 1.1 skrll asection *input_section ATTRIBUTE_UNUSED,
101 1.1 skrll bfd *output_bfd ATTRIBUTE_UNUSED,
102 1.1 skrll char **error_message ATTRIBUTE_UNUSED)
103 1.1 skrll {
104 1.1 skrll return bfd_reloc_notsupported;
105 1.1 skrll }
106 1.1 skrll
107 1.1 skrll /* Handle the WDISP16 reloc. */
108 1.1 skrll
109 1.1 skrll static bfd_reloc_status_type
110 1.1 skrll sparc_elf_wdisp16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
111 1.6 christos void * data, asection *input_section, bfd *output_bfd,
112 1.1 skrll char **error_message ATTRIBUTE_UNUSED)
113 1.1 skrll {
114 1.1 skrll bfd_vma relocation;
115 1.1 skrll bfd_vma insn;
116 1.1 skrll bfd_reloc_status_type status;
117 1.1 skrll
118 1.1 skrll status = init_insn_reloc (abfd, reloc_entry, symbol, data,
119 1.1 skrll input_section, output_bfd, &relocation, &insn);
120 1.1 skrll if (status != bfd_reloc_other)
121 1.1 skrll return status;
122 1.1 skrll
123 1.1 skrll insn &= ~ (bfd_vma) 0x303fff;
124 1.1 skrll insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff);
125 1.1 skrll bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
126 1.1 skrll
127 1.1 skrll if ((bfd_signed_vma) relocation < - 0x40000
128 1.1 skrll || (bfd_signed_vma) relocation > 0x3ffff)
129 1.1 skrll return bfd_reloc_overflow;
130 1.1 skrll else
131 1.1 skrll return bfd_reloc_ok;
132 1.1 skrll }
133 1.1 skrll
134 1.6 christos /* Handle the WDISP10 reloc. */
135 1.6 christos
136 1.6 christos static bfd_reloc_status_type
137 1.6 christos sparc_elf_wdisp10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
138 1.6 christos void * data, asection *input_section, bfd *output_bfd,
139 1.6 christos char **error_message ATTRIBUTE_UNUSED)
140 1.6 christos {
141 1.6 christos bfd_vma relocation;
142 1.6 christos bfd_vma insn;
143 1.6 christos bfd_reloc_status_type status;
144 1.6 christos
145 1.6 christos status = init_insn_reloc (abfd, reloc_entry, symbol, data,
146 1.6 christos input_section, output_bfd, &relocation, &insn);
147 1.6 christos if (status != bfd_reloc_other)
148 1.6 christos return status;
149 1.6 christos
150 1.6 christos insn &= ~ (bfd_vma) 0x181fe0;
151 1.6 christos insn |= (((relocation >> 2) & 0x300) << 11)
152 1.6 christos | (((relocation >> 2) & 0xff) << 5);
153 1.6 christos bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
154 1.6 christos
155 1.6 christos if ((bfd_signed_vma) relocation < - 0x1000
156 1.6 christos || (bfd_signed_vma) relocation > 0xfff)
157 1.6 christos return bfd_reloc_overflow;
158 1.6 christos else
159 1.6 christos return bfd_reloc_ok;
160 1.6 christos }
161 1.6 christos
162 1.1 skrll /* Handle the HIX22 reloc. */
163 1.1 skrll
164 1.1 skrll static bfd_reloc_status_type
165 1.1 skrll sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
166 1.6 christos void * data, asection *input_section, bfd *output_bfd,
167 1.1 skrll char **error_message ATTRIBUTE_UNUSED)
168 1.1 skrll {
169 1.1 skrll bfd_vma relocation;
170 1.1 skrll bfd_vma insn;
171 1.1 skrll bfd_reloc_status_type status;
172 1.1 skrll
173 1.1 skrll status = init_insn_reloc (abfd, reloc_entry, symbol, data,
174 1.1 skrll input_section, output_bfd, &relocation, &insn);
175 1.1 skrll if (status != bfd_reloc_other)
176 1.1 skrll return status;
177 1.1 skrll
178 1.1 skrll relocation ^= MINUS_ONE;
179 1.1 skrll insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
180 1.1 skrll bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
181 1.1 skrll
182 1.1 skrll if ((relocation & ~ (bfd_vma) 0xffffffff) != 0)
183 1.1 skrll return bfd_reloc_overflow;
184 1.1 skrll else
185 1.1 skrll return bfd_reloc_ok;
186 1.1 skrll }
187 1.1 skrll
188 1.1 skrll /* Handle the LOX10 reloc. */
189 1.1 skrll
190 1.1 skrll static bfd_reloc_status_type
191 1.1 skrll sparc_elf_lox10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
192 1.6 christos void * data, asection *input_section, bfd *output_bfd,
193 1.1 skrll char **error_message ATTRIBUTE_UNUSED)
194 1.1 skrll {
195 1.1 skrll bfd_vma relocation;
196 1.1 skrll bfd_vma insn;
197 1.1 skrll bfd_reloc_status_type status;
198 1.1 skrll
199 1.1 skrll status = init_insn_reloc (abfd, reloc_entry, symbol, data,
200 1.1 skrll input_section, output_bfd, &relocation, &insn);
201 1.1 skrll if (status != bfd_reloc_other)
202 1.1 skrll return status;
203 1.1 skrll
204 1.1 skrll insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff);
205 1.1 skrll bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
206 1.1 skrll
207 1.1 skrll return bfd_reloc_ok;
208 1.1 skrll }
209 1.1 skrll
210 1.1 skrll static reloc_howto_type _bfd_sparc_elf_howto_table[] =
211 1.1 skrll {
212 1.13 christos HOWTO(R_SPARC_NONE, 0,3, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
213 1.13 christos HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE),
214 1.13 christos HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE),
215 1.13 christos HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE),
216 1.13 christos HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE),
217 1.13 christos HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE),
218 1.13 christos HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE),
219 1.1 skrll HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE),
220 1.1 skrll HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE),
221 1.13 christos HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE),
222 1.13 christos HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE),
223 1.13 christos HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE),
224 1.13 christos HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE),
225 1.13 christos HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE),
226 1.13 christos HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE),
227 1.13 christos HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE),
228 1.13 christos HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE),
229 1.13 christos HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE),
230 1.13 christos HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE),
231 1.13 christos HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE),
232 1.1 skrll HOWTO(R_SPARC_GLOB_DAT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",FALSE,0,0x00000000,TRUE),
233 1.1 skrll HOWTO(R_SPARC_JMP_SLOT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",FALSE,0,0x00000000,TRUE),
234 1.1 skrll HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE),
235 1.13 christos HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE),
236 1.13 christos HOWTO(R_SPARC_PLT32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE),
237 1.13 christos HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE),
238 1.13 christos HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE),
239 1.13 christos HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE),
240 1.13 christos HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE),
241 1.13 christos HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE),
242 1.13 christos HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE),
243 1.13 christos HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE),
244 1.13 christos HOWTO(R_SPARC_64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", FALSE,0,MINUS_ONE, TRUE),
245 1.13 christos HOWTO(R_SPARC_OLO10, 0,2,13,FALSE,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", FALSE,0,0x00001fff,TRUE),
246 1.13 christos HOWTO(R_SPARC_HH22, 42,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", FALSE,0,0x003fffff,TRUE),
247 1.13 christos HOWTO(R_SPARC_HM10, 32,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", FALSE,0,0x000003ff,TRUE),
248 1.13 christos HOWTO(R_SPARC_LM22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", FALSE,0,0x003fffff,TRUE),
249 1.13 christos HOWTO(R_SPARC_PC_HH22, 42,2,22,TRUE, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", FALSE,0,0x003fffff,TRUE),
250 1.13 christos HOWTO(R_SPARC_PC_HM10, 32,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", FALSE,0,0x000003ff,TRUE),
251 1.13 christos HOWTO(R_SPARC_PC_LM22, 10,2,22,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", FALSE,0,0x003fffff,TRUE),
252 1.1 skrll HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE),
253 1.1 skrll HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE),
254 1.1 skrll HOWTO(R_SPARC_UNUSED_42, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",FALSE,0,0x00000000,TRUE),
255 1.13 christos HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE),
256 1.13 christos HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE),
257 1.13 christos HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE),
258 1.13 christos HOWTO(R_SPARC_DISP64, 0,4,64,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", FALSE,0,MINUS_ONE, TRUE),
259 1.13 christos HOWTO(R_SPARC_PLT64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", FALSE,0,MINUS_ONE, TRUE),
260 1.13 christos HOWTO(R_SPARC_HIX22, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", FALSE,0,MINUS_ONE, FALSE),
261 1.13 christos HOWTO(R_SPARC_LOX10, 0,4, 0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", FALSE,0,MINUS_ONE, FALSE),
262 1.13 christos HOWTO(R_SPARC_H44, 22,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", FALSE,0,0x003fffff,FALSE),
263 1.13 christos HOWTO(R_SPARC_M44, 12,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", FALSE,0,0x000003ff,FALSE),
264 1.13 christos HOWTO(R_SPARC_L44, 0,2,13,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", FALSE,0,0x00000fff,FALSE),
265 1.1 skrll HOWTO(R_SPARC_REGISTER, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",FALSE,0,MINUS_ONE, FALSE),
266 1.13 christos HOWTO(R_SPARC_UA64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", FALSE,0,MINUS_ONE, TRUE),
267 1.13 christos HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE),
268 1.1 skrll HOWTO(R_SPARC_TLS_GD_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_HI22",FALSE,0,0x003fffff,TRUE),
269 1.1 skrll HOWTO(R_SPARC_TLS_GD_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_LO10",FALSE,0,0x000003ff,TRUE),
270 1.1 skrll HOWTO(R_SPARC_TLS_GD_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_ADD",FALSE,0,0x00000000,TRUE),
271 1.1 skrll HOWTO(R_SPARC_TLS_GD_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_CALL",FALSE,0,0x3fffffff,TRUE),
272 1.1 skrll HOWTO(R_SPARC_TLS_LDM_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_HI22",FALSE,0,0x003fffff,TRUE),
273 1.1 skrll HOWTO(R_SPARC_TLS_LDM_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_LO10",FALSE,0,0x000003ff,TRUE),
274 1.1 skrll HOWTO(R_SPARC_TLS_LDM_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_ADD",FALSE,0,0x00000000,TRUE),
275 1.1 skrll HOWTO(R_SPARC_TLS_LDM_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_CALL",FALSE,0,0x3fffffff,TRUE),
276 1.1 skrll HOWTO(R_SPARC_TLS_LDO_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_TLS_LDO_HIX22",FALSE,0,0x003fffff, FALSE),
277 1.1 skrll HOWTO(R_SPARC_TLS_LDO_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LDO_LOX10",FALSE,0,0x000003ff, FALSE),
278 1.1 skrll HOWTO(R_SPARC_TLS_LDO_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDO_ADD",FALSE,0,0x00000000,TRUE),
279 1.1 skrll HOWTO(R_SPARC_TLS_IE_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_HI22",FALSE,0,0x003fffff,TRUE),
280 1.1 skrll HOWTO(R_SPARC_TLS_IE_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LO10",FALSE,0,0x000003ff,TRUE),
281 1.1 skrll HOWTO(R_SPARC_TLS_IE_LD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LD",FALSE,0,0x00000000,TRUE),
282 1.1 skrll HOWTO(R_SPARC_TLS_IE_LDX,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LDX",FALSE,0,0x00000000,TRUE),
283 1.1 skrll HOWTO(R_SPARC_TLS_IE_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_ADD",FALSE,0,0x00000000,TRUE),
284 1.1 skrll HOWTO(R_SPARC_TLS_LE_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_TLS_LE_HIX22",FALSE,0,0x003fffff, FALSE),
285 1.1 skrll HOWTO(R_SPARC_TLS_LE_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LE_LOX10",FALSE,0,0x000003ff, FALSE),
286 1.1 skrll HOWTO(R_SPARC_TLS_DTPMOD32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD32",FALSE,0,0x00000000,TRUE),
287 1.1 skrll HOWTO(R_SPARC_TLS_DTPMOD64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD64",FALSE,0,0x00000000,TRUE),
288 1.1 skrll HOWTO(R_SPARC_TLS_DTPOFF32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF32",FALSE,0,0xffffffff,TRUE),
289 1.1 skrll HOWTO(R_SPARC_TLS_DTPOFF64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF64",FALSE,0,MINUS_ONE,TRUE),
290 1.1 skrll HOWTO(R_SPARC_TLS_TPOFF32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF32",FALSE,0,0x00000000,TRUE),
291 1.1 skrll HOWTO(R_SPARC_TLS_TPOFF64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF64",FALSE,0,0x00000000,TRUE),
292 1.1 skrll HOWTO(R_SPARC_GOTDATA_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_HIX22",FALSE,0,0x003fffff, FALSE),
293 1.1 skrll HOWTO(R_SPARC_GOTDATA_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_LOX10",FALSE,0,0x000003ff, FALSE),
294 1.1 skrll HOWTO(R_SPARC_GOTDATA_OP_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_OP_HIX22",FALSE,0,0x003fffff, FALSE),
295 1.13 christos HOWTO(R_SPARC_GOTDATA_OP_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_OP_LOX10",FALSE,0,0x000003ff, FALSE),
296 1.1 skrll HOWTO(R_SPARC_GOTDATA_OP,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOTDATA_OP",FALSE,0,0x00000000,TRUE),
297 1.6 christos HOWTO(R_SPARC_H34,12,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc,"R_SPARC_H34",FALSE,0,0x003fffff,FALSE),
298 1.6 christos HOWTO(R_SPARC_SIZE32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE32",FALSE,0,0xffffffff,TRUE),
299 1.6 christos HOWTO(R_SPARC_SIZE64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE64",FALSE,0,MINUS_ONE, TRUE),
300 1.6 christos HOWTO(R_SPARC_WDISP10,2,2,10,TRUE, 0,complain_overflow_signed,sparc_elf_wdisp10_reloc,"R_SPARC_WDISP10",FALSE,0,0x00000000,TRUE),
301 1.1 skrll };
302 1.3 christos static reloc_howto_type sparc_jmp_irel_howto =
303 1.3 christos HOWTO(R_SPARC_JMP_IREL, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_IREL",FALSE,0,0x00000000,TRUE);
304 1.3 christos static reloc_howto_type sparc_irelative_howto =
305 1.3 christos HOWTO(R_SPARC_IRELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_IRELATIVE",FALSE,0,0x00000000,TRUE);
306 1.1 skrll static reloc_howto_type sparc_vtinherit_howto =
307 1.1 skrll HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", FALSE,0, 0, FALSE);
308 1.1 skrll static reloc_howto_type sparc_vtentry_howto =
309 1.1 skrll HOWTO (R_SPARC_GNU_VTENTRY, 0,2,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_SPARC_GNU_VTENTRY", FALSE,0,0, FALSE);
310 1.1 skrll static reloc_howto_type sparc_rev32_howto =
311 1.1 skrll HOWTO(R_SPARC_REV32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", FALSE,0,0xffffffff,TRUE);
312 1.1 skrll
313 1.1 skrll reloc_howto_type *
314 1.14 christos _bfd_sparc_elf_reloc_type_lookup (bfd *abfd,
315 1.1 skrll bfd_reloc_code_real_type code)
316 1.1 skrll {
317 1.3 christos /* We explicitly handle each relocation type in the switch
318 1.3 christos instead of using a lookup table for efficiency. */
319 1.1 skrll switch (code)
320 1.1 skrll {
321 1.3 christos case BFD_RELOC_NONE:
322 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_NONE];
323 1.3 christos
324 1.3 christos case BFD_RELOC_8:
325 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_8];
326 1.3 christos
327 1.3 christos case BFD_RELOC_16:
328 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_16];
329 1.3 christos
330 1.3 christos case BFD_RELOC_32:
331 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_32];
332 1.3 christos
333 1.3 christos case BFD_RELOC_8_PCREL:
334 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_DISP8];
335 1.3 christos
336 1.3 christos case BFD_RELOC_16_PCREL:
337 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_DISP16];
338 1.3 christos
339 1.3 christos case BFD_RELOC_32_PCREL:
340 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_DISP32];
341 1.3 christos
342 1.3 christos case BFD_RELOC_32_PCREL_S2:
343 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP30];
344 1.3 christos
345 1.3 christos case BFD_RELOC_SPARC_WDISP22:
346 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP22];
347 1.3 christos
348 1.3 christos case BFD_RELOC_HI22:
349 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_HI22];
350 1.3 christos
351 1.3 christos case BFD_RELOC_SPARC22:
352 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_22];
353 1.3 christos
354 1.3 christos case BFD_RELOC_SPARC13:
355 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_13];
356 1.3 christos
357 1.3 christos case BFD_RELOC_LO10:
358 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_LO10];
359 1.3 christos
360 1.3 christos case BFD_RELOC_SPARC_GOT10:
361 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_GOT10];
362 1.3 christos
363 1.3 christos case BFD_RELOC_SPARC_GOT13:
364 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_GOT13];
365 1.3 christos
366 1.3 christos case BFD_RELOC_SPARC_GOT22:
367 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_GOT22];
368 1.3 christos
369 1.3 christos case BFD_RELOC_SPARC_PC10:
370 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_PC10];
371 1.3 christos
372 1.3 christos case BFD_RELOC_SPARC_PC22:
373 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_PC22];
374 1.3 christos
375 1.3 christos case BFD_RELOC_SPARC_WPLT30:
376 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_WPLT30];
377 1.3 christos
378 1.3 christos case BFD_RELOC_SPARC_COPY:
379 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_COPY];
380 1.3 christos
381 1.3 christos case BFD_RELOC_SPARC_GLOB_DAT:
382 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_GLOB_DAT];
383 1.3 christos
384 1.3 christos case BFD_RELOC_SPARC_JMP_SLOT:
385 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_JMP_SLOT];
386 1.3 christos
387 1.3 christos case BFD_RELOC_SPARC_RELATIVE:
388 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_RELATIVE];
389 1.3 christos
390 1.3 christos case BFD_RELOC_SPARC_UA32:
391 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_UA32];
392 1.3 christos
393 1.3 christos case BFD_RELOC_SPARC_PLT32:
394 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_PLT32];
395 1.3 christos
396 1.3 christos case BFD_RELOC_SPARC_10:
397 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_10];
398 1.3 christos
399 1.3 christos case BFD_RELOC_SPARC_11:
400 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_11];
401 1.3 christos
402 1.3 christos case BFD_RELOC_SPARC_64:
403 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_64];
404 1.3 christos
405 1.3 christos case BFD_RELOC_SPARC_OLO10:
406 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_OLO10];
407 1.3 christos
408 1.3 christos case BFD_RELOC_SPARC_HH22:
409 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_HH22];
410 1.3 christos
411 1.3 christos case BFD_RELOC_SPARC_HM10:
412 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_HM10];
413 1.3 christos
414 1.3 christos case BFD_RELOC_SPARC_LM22:
415 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_LM22];
416 1.3 christos
417 1.3 christos case BFD_RELOC_SPARC_PC_HH22:
418 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HH22];
419 1.3 christos
420 1.3 christos case BFD_RELOC_SPARC_PC_HM10:
421 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HM10];
422 1.3 christos
423 1.3 christos case BFD_RELOC_SPARC_PC_LM22:
424 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_PC_LM22];
425 1.3 christos
426 1.3 christos case BFD_RELOC_SPARC_WDISP16:
427 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP16];
428 1.3 christos
429 1.3 christos case BFD_RELOC_SPARC_WDISP19:
430 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP19];
431 1.3 christos
432 1.3 christos case BFD_RELOC_SPARC_7:
433 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_7];
434 1.3 christos
435 1.3 christos case BFD_RELOC_SPARC_5:
436 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_5];
437 1.3 christos
438 1.3 christos case BFD_RELOC_SPARC_6:
439 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_6];
440 1.3 christos
441 1.3 christos case BFD_RELOC_SPARC_DISP64:
442 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_DISP64];
443 1.3 christos
444 1.3 christos case BFD_RELOC_SPARC_PLT64:
445 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_PLT64];
446 1.3 christos
447 1.3 christos case BFD_RELOC_SPARC_HIX22:
448 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_HIX22];
449 1.3 christos
450 1.3 christos case BFD_RELOC_SPARC_LOX10:
451 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_LOX10];
452 1.3 christos
453 1.3 christos case BFD_RELOC_SPARC_H44:
454 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_H44];
455 1.3 christos
456 1.3 christos case BFD_RELOC_SPARC_M44:
457 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_M44];
458 1.3 christos
459 1.3 christos case BFD_RELOC_SPARC_L44:
460 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_L44];
461 1.3 christos
462 1.3 christos case BFD_RELOC_SPARC_REGISTER:
463 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_REGISTER];
464 1.3 christos
465 1.3 christos case BFD_RELOC_SPARC_UA64:
466 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_UA64];
467 1.3 christos
468 1.3 christos case BFD_RELOC_SPARC_UA16:
469 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_UA16];
470 1.3 christos
471 1.3 christos case BFD_RELOC_SPARC_TLS_GD_HI22:
472 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_HI22];
473 1.3 christos
474 1.3 christos case BFD_RELOC_SPARC_TLS_GD_LO10:
475 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_LO10];
476 1.3 christos
477 1.3 christos case BFD_RELOC_SPARC_TLS_GD_ADD:
478 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_ADD];
479 1.3 christos
480 1.3 christos case BFD_RELOC_SPARC_TLS_GD_CALL:
481 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_CALL];
482 1.3 christos
483 1.3 christos case BFD_RELOC_SPARC_TLS_LDM_HI22:
484 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_HI22];
485 1.3 christos
486 1.3 christos case BFD_RELOC_SPARC_TLS_LDM_LO10:
487 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_LO10];
488 1.3 christos
489 1.3 christos case BFD_RELOC_SPARC_TLS_LDM_ADD:
490 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_ADD];
491 1.3 christos
492 1.3 christos case BFD_RELOC_SPARC_TLS_LDM_CALL:
493 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_CALL];
494 1.3 christos
495 1.3 christos case BFD_RELOC_SPARC_TLS_LDO_HIX22:
496 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_HIX22];
497 1.3 christos
498 1.3 christos case BFD_RELOC_SPARC_TLS_LDO_LOX10:
499 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_LOX10];
500 1.3 christos
501 1.3 christos case BFD_RELOC_SPARC_TLS_LDO_ADD:
502 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_ADD];
503 1.3 christos
504 1.3 christos case BFD_RELOC_SPARC_TLS_IE_HI22:
505 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_HI22];
506 1.3 christos
507 1.3 christos case BFD_RELOC_SPARC_TLS_IE_LO10:
508 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LO10];
509 1.3 christos
510 1.3 christos case BFD_RELOC_SPARC_TLS_IE_LD:
511 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LD];
512 1.3 christos
513 1.3 christos case BFD_RELOC_SPARC_TLS_IE_LDX:
514 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LDX];
515 1.3 christos
516 1.3 christos case BFD_RELOC_SPARC_TLS_IE_ADD:
517 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_ADD];
518 1.3 christos
519 1.3 christos case BFD_RELOC_SPARC_TLS_LE_HIX22:
520 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_HIX22];
521 1.3 christos
522 1.3 christos case BFD_RELOC_SPARC_TLS_LE_LOX10:
523 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_LOX10];
524 1.3 christos
525 1.3 christos case BFD_RELOC_SPARC_TLS_DTPMOD32:
526 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD32];
527 1.3 christos
528 1.3 christos case BFD_RELOC_SPARC_TLS_DTPMOD64:
529 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD64];
530 1.3 christos
531 1.3 christos case BFD_RELOC_SPARC_TLS_DTPOFF32:
532 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF32];
533 1.3 christos
534 1.3 christos case BFD_RELOC_SPARC_TLS_DTPOFF64:
535 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF64];
536 1.3 christos
537 1.3 christos case BFD_RELOC_SPARC_TLS_TPOFF32:
538 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF32];
539 1.3 christos
540 1.3 christos case BFD_RELOC_SPARC_TLS_TPOFF64:
541 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF64];
542 1.3 christos
543 1.3 christos case BFD_RELOC_SPARC_GOTDATA_HIX22:
544 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_HIX22];
545 1.3 christos
546 1.3 christos case BFD_RELOC_SPARC_GOTDATA_LOX10:
547 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_LOX10];
548 1.3 christos
549 1.3 christos case BFD_RELOC_SPARC_GOTDATA_OP_HIX22:
550 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_HIX22];
551 1.3 christos
552 1.3 christos case BFD_RELOC_SPARC_GOTDATA_OP_LOX10:
553 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_LOX10];
554 1.3 christos
555 1.3 christos case BFD_RELOC_SPARC_GOTDATA_OP:
556 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP];
557 1.3 christos
558 1.6 christos case BFD_RELOC_SPARC_H34:
559 1.6 christos return &_bfd_sparc_elf_howto_table[R_SPARC_H34];
560 1.6 christos
561 1.6 christos case BFD_RELOC_SPARC_SIZE32:
562 1.6 christos return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE32];
563 1.6 christos
564 1.6 christos case BFD_RELOC_SPARC_SIZE64:
565 1.6 christos return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE64];
566 1.6 christos
567 1.6 christos case BFD_RELOC_SPARC_WDISP10:
568 1.6 christos return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP10];
569 1.6 christos
570 1.3 christos case BFD_RELOC_SPARC_JMP_IREL:
571 1.3 christos return &sparc_jmp_irel_howto;
572 1.3 christos
573 1.3 christos case BFD_RELOC_SPARC_IRELATIVE:
574 1.3 christos return &sparc_irelative_howto;
575 1.3 christos
576 1.1 skrll case BFD_RELOC_VTABLE_INHERIT:
577 1.1 skrll return &sparc_vtinherit_howto;
578 1.1 skrll
579 1.1 skrll case BFD_RELOC_VTABLE_ENTRY:
580 1.1 skrll return &sparc_vtentry_howto;
581 1.1 skrll
582 1.1 skrll case BFD_RELOC_SPARC_REV32:
583 1.1 skrll return &sparc_rev32_howto;
584 1.1 skrll
585 1.1 skrll default:
586 1.3 christos break;
587 1.1 skrll }
588 1.14 christos /* xgettext:c-format */
589 1.14 christos _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, (int) code);
590 1.14 christos bfd_set_error (bfd_error_bad_value);
591 1.14 christos return NULL;
592 1.1 skrll }
593 1.1 skrll
594 1.1 skrll reloc_howto_type *
595 1.1 skrll _bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
596 1.1 skrll const char *r_name)
597 1.1 skrll {
598 1.1 skrll unsigned int i;
599 1.1 skrll
600 1.14 christos for (i = 0; i < ARRAY_SIZE (_bfd_sparc_elf_howto_table); i++)
601 1.1 skrll if (_bfd_sparc_elf_howto_table[i].name != NULL
602 1.1 skrll && strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0)
603 1.1 skrll return &_bfd_sparc_elf_howto_table[i];
604 1.1 skrll
605 1.1 skrll if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0)
606 1.1 skrll return &sparc_vtinherit_howto;
607 1.1 skrll if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0)
608 1.1 skrll return &sparc_vtentry_howto;
609 1.1 skrll if (strcasecmp (sparc_rev32_howto.name, r_name) == 0)
610 1.1 skrll return &sparc_rev32_howto;
611 1.1 skrll
612 1.1 skrll return NULL;
613 1.1 skrll }
614 1.1 skrll
615 1.1 skrll reloc_howto_type *
616 1.14 christos _bfd_sparc_elf_info_to_howto_ptr (bfd *abfd ATTRIBUTE_UNUSED,
617 1.14 christos unsigned int r_type)
618 1.1 skrll {
619 1.1 skrll switch (r_type)
620 1.1 skrll {
621 1.3 christos case R_SPARC_JMP_IREL:
622 1.3 christos return &sparc_jmp_irel_howto;
623 1.3 christos
624 1.3 christos case R_SPARC_IRELATIVE:
625 1.3 christos return &sparc_irelative_howto;
626 1.3 christos
627 1.1 skrll case R_SPARC_GNU_VTINHERIT:
628 1.1 skrll return &sparc_vtinherit_howto;
629 1.1 skrll
630 1.1 skrll case R_SPARC_GNU_VTENTRY:
631 1.1 skrll return &sparc_vtentry_howto;
632 1.1 skrll
633 1.1 skrll case R_SPARC_REV32:
634 1.1 skrll return &sparc_rev32_howto;
635 1.1 skrll
636 1.1 skrll default:
637 1.1 skrll if (r_type >= (unsigned int) R_SPARC_max_std)
638 1.1 skrll {
639 1.14 christos _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
640 1.14 christos abfd, r_type);
641 1.14 christos bfd_set_error (bfd_error_bad_value);
642 1.14 christos return NULL;
643 1.1 skrll }
644 1.1 skrll return &_bfd_sparc_elf_howto_table[r_type];
645 1.1 skrll }
646 1.1 skrll }
647 1.1 skrll
648 1.1 skrll /* Both 32-bit and 64-bit sparc encode this in an identical manner,
649 1.1 skrll so just take advantage of that. */
650 1.1 skrll #define SPARC_ELF_R_TYPE(r_info) \
651 1.1 skrll ((r_info) & 0xff)
652 1.1 skrll
653 1.14 christos bfd_boolean
654 1.14 christos _bfd_sparc_elf_info_to_howto (bfd *abfd, arelent *cache_ptr,
655 1.1 skrll Elf_Internal_Rela *dst)
656 1.1 skrll {
657 1.1 skrll unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
658 1.1 skrll
659 1.14 christos if ((cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (abfd, r_type)) == NULL)
660 1.14 christos {
661 1.14 christos bfd_set_error (bfd_error_bad_value);
662 1.14 christos return FALSE;
663 1.14 christos }
664 1.14 christos return TRUE;
665 1.1 skrll }
666 1.1 skrll
667 1.1 skrll
669 1.1 skrll /* The nop opcode we use. */
670 1.1 skrll #define SPARC_NOP 0x01000000
671 1.1 skrll
672 1.1 skrll #define SPARC_INSN_BYTES 4
673 1.13 christos
674 1.13 christos /* Is an undefined weak symbol resolved to 0 ?
675 1.13 christos Reference to an undefined weak symbol is resolved to 0 when
676 1.13 christos building an executable if it isn't dynamic and
677 1.13 christos 1. Has non-GOT/non-PLT relocations in text section.
678 1.13 christos Or
679 1.13 christos 2. Has no GOT/PLT relocation. */
680 1.13 christos #define UNDEFINED_WEAK_RESOLVED_TO_ZERO(INFO, EH) \
681 1.13 christos ((EH)->elf.root.type == bfd_link_hash_undefweak \
682 1.13 christos && bfd_link_executable (INFO) \
683 1.14 christos && (_bfd_sparc_elf_hash_table (INFO)->interp == NULL \
684 1.13 christos || !(INFO)->dynamic_undefined_weak \
685 1.14 christos || (EH)->has_non_got_reloc \
686 1.1 skrll || !(EH)->has_got_reloc))
687 1.1 skrll
688 1.1 skrll /* SPARC ELF linker hash entry. */
689 1.1 skrll
690 1.1 skrll struct _bfd_sparc_elf_link_hash_entry
691 1.1 skrll {
692 1.1 skrll struct elf_link_hash_entry elf;
693 1.1 skrll
694 1.13 christos /* Track dynamic relocs copied for this symbol. */
695 1.1 skrll struct elf_dyn_relocs *dyn_relocs;
696 1.1 skrll
697 1.1 skrll #define GOT_UNKNOWN 0
698 1.1 skrll #define GOT_NORMAL 1
699 1.1 skrll #define GOT_TLS_GD 2
700 1.1 skrll #define GOT_TLS_IE 3
701 1.13 christos unsigned char tls_type;
702 1.14 christos
703 1.13 christos /* Symbol has GOT or PLT relocations. */
704 1.13 christos unsigned int has_got_reloc : 1;
705 1.14 christos
706 1.14 christos /* Symbol has old-style, non-relaxable GOT relocations. */
707 1.14 christos unsigned int has_old_style_got_reloc : 1;
708 1.13 christos
709 1.13 christos /* Symbol has non-GOT/non-PLT relocations in text sections. */
710 1.13 christos unsigned int has_non_got_reloc : 1;
711 1.1 skrll
712 1.1 skrll };
713 1.1 skrll
714 1.1 skrll #define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
715 1.1 skrll
716 1.1 skrll struct _bfd_sparc_elf_obj_tdata
717 1.1 skrll {
718 1.1 skrll struct elf_obj_tdata root;
719 1.1 skrll
720 1.1 skrll /* tls_type for each local got entry. */
721 1.1 skrll char *local_got_tls_type;
722 1.1 skrll
723 1.1 skrll /* TRUE if TLS GD relocs has been seen for this object. */
724 1.1 skrll bfd_boolean has_tlsgd;
725 1.1 skrll };
726 1.1 skrll
727 1.1 skrll #define _bfd_sparc_elf_tdata(abfd) \
728 1.1 skrll ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
729 1.1 skrll
730 1.1 skrll #define _bfd_sparc_elf_local_got_tls_type(abfd) \
731 1.1 skrll (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
732 1.1 skrll
733 1.1 skrll #define is_sparc_elf(bfd) \
734 1.1 skrll (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
735 1.3 christos && elf_tdata (bfd) != NULL \
736 1.1 skrll && elf_object_id (bfd) == SPARC_ELF_DATA)
737 1.1 skrll
738 1.1 skrll bfd_boolean
739 1.1 skrll _bfd_sparc_elf_mkobject (bfd *abfd)
740 1.1 skrll {
741 1.3 christos return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
742 1.1 skrll SPARC_ELF_DATA);
743 1.1 skrll }
744 1.1 skrll
745 1.3 christos static void
746 1.1 skrll sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
747 1.3 christos {
748 1.1 skrll bfd_put_32 (abfd, val, ptr);
749 1.1 skrll }
750 1.1 skrll
751 1.3 christos static void
752 1.1 skrll sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
753 1.3 christos {
754 1.1 skrll bfd_put_64 (abfd, val, ptr);
755 1.1 skrll }
756 1.1 skrll
757 1.1 skrll static void
758 1.1 skrll sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
759 1.1 skrll {
760 1.1 skrll const struct elf_backend_data *bed;
761 1.1 skrll bfd_byte *loc;
762 1.1 skrll
763 1.14 christos bed = get_elf_backend_data (abfd);
764 1.1 skrll BFD_ASSERT (s->reloc_count * bed->s->sizeof_rela < s->size);
765 1.1 skrll loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
766 1.1 skrll bed->s->swap_reloca_out (abfd, rel, loc);
767 1.1 skrll }
768 1.1 skrll
769 1.1 skrll static bfd_vma
770 1.3 christos sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
771 1.1 skrll bfd_vma rel_index ATTRIBUTE_UNUSED,
772 1.1 skrll bfd_vma type ATTRIBUTE_UNUSED)
773 1.3 christos {
774 1.1 skrll return ELF64_R_INFO (rel_index,
775 1.1 skrll (in_rel ?
776 1.1 skrll ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
777 1.1 skrll type) : type));
778 1.1 skrll }
779 1.1 skrll
780 1.1 skrll static bfd_vma
781 1.3 christos sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
782 1.1 skrll bfd_vma rel_index, bfd_vma type)
783 1.3 christos {
784 1.1 skrll return ELF32_R_INFO (rel_index, type);
785 1.1 skrll }
786 1.1 skrll
787 1.1 skrll static bfd_vma
788 1.1 skrll sparc_elf_r_symndx_64 (bfd_vma r_info)
789 1.1 skrll {
790 1.1 skrll bfd_vma r_symndx = ELF32_R_SYM (r_info);
791 1.1 skrll return (r_symndx >> 24);
792 1.1 skrll }
793 1.1 skrll
794 1.1 skrll static bfd_vma
795 1.1 skrll sparc_elf_r_symndx_32 (bfd_vma r_info)
796 1.1 skrll {
797 1.1 skrll return ELF32_R_SYM (r_info);
798 1.1 skrll }
799 1.1 skrll
800 1.1 skrll /* PLT/GOT stuff */
801 1.1 skrll
802 1.1 skrll #define PLT32_ENTRY_SIZE 12
803 1.1 skrll #define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
804 1.1 skrll
805 1.1 skrll /* The first four entries in a 32-bit procedure linkage table are reserved,
806 1.1 skrll and the initial contents are unimportant (we zero them out).
807 1.1 skrll Subsequent entries look like this. See the SVR4 ABI SPARC
808 1.1 skrll supplement to see how this works. */
809 1.1 skrll
810 1.1 skrll /* sethi %hi(.-.plt0),%g1. We fill in the address later. */
811 1.1 skrll #define PLT32_ENTRY_WORD0 0x03000000
812 1.1 skrll /* b,a .plt0. We fill in the offset later. */
813 1.1 skrll #define PLT32_ENTRY_WORD1 0x30800000
814 1.1 skrll /* nop. */
815 1.1 skrll #define PLT32_ENTRY_WORD2 SPARC_NOP
816 1.1 skrll
817 1.1 skrll static int
818 1.1 skrll sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
819 1.1 skrll bfd_vma max ATTRIBUTE_UNUSED,
820 1.1 skrll bfd_vma *r_offset)
821 1.1 skrll {
822 1.1 skrll bfd_put_32 (output_bfd,
823 1.1 skrll PLT32_ENTRY_WORD0 + offset,
824 1.1 skrll splt->contents + offset);
825 1.1 skrll bfd_put_32 (output_bfd,
826 1.1 skrll (PLT32_ENTRY_WORD1
827 1.1 skrll + (((- (offset + 4)) >> 2) & 0x3fffff)),
828 1.1 skrll splt->contents + offset + 4);
829 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
830 1.1 skrll splt->contents + offset + 8);
831 1.1 skrll
832 1.1 skrll *r_offset = offset;
833 1.1 skrll
834 1.1 skrll return offset / PLT32_ENTRY_SIZE - 4;
835 1.1 skrll }
836 1.1 skrll
837 1.1 skrll /* Both the headers and the entries are icache aligned. */
838 1.1 skrll #define PLT64_ENTRY_SIZE 32
839 1.1 skrll #define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
840 1.1 skrll #define PLT64_LARGE_THRESHOLD 32768
841 1.1 skrll
842 1.1 skrll static int
843 1.1 skrll sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
844 1.1 skrll bfd_vma max, bfd_vma *r_offset)
845 1.1 skrll {
846 1.1 skrll unsigned char *entry = splt->contents + offset;
847 1.3 christos const unsigned int nop = SPARC_NOP;
848 1.1 skrll int plt_index;
849 1.1 skrll
850 1.1 skrll if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
851 1.1 skrll {
852 1.1 skrll unsigned int sethi, ba;
853 1.1 skrll
854 1.1 skrll *r_offset = offset;
855 1.3 christos
856 1.1 skrll plt_index = (offset / PLT64_ENTRY_SIZE);
857 1.3 christos
858 1.1 skrll sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
859 1.1 skrll ba = 0x30680000
860 1.1 skrll | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
861 1.1 skrll
862 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
863 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
864 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
865 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
866 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
867 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
868 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
869 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
870 1.1 skrll }
871 1.1 skrll else
872 1.1 skrll {
873 1.1 skrll unsigned char *ptr;
874 1.1 skrll unsigned int ldx;
875 1.1 skrll int block, last_block, ofs, last_ofs, chunks_this_block;
876 1.1 skrll const int insn_chunk_size = (6 * 4);
877 1.1 skrll const int ptr_chunk_size = (1 * 8);
878 1.1 skrll const int entries_per_block = 160;
879 1.1 skrll const int block_size = entries_per_block * (insn_chunk_size
880 1.1 skrll + ptr_chunk_size);
881 1.1 skrll
882 1.1 skrll /* Entries 32768 and higher are grouped into blocks of 160.
883 1.1 skrll The blocks are further subdivided into 160 sequences of
884 1.1 skrll 6 instructions and 160 pointers. If a block does not require
885 1.1 skrll the full 160 entries, let's say it requires N, then there
886 1.1 skrll will be N sequences of 6 instructions and N pointers. */
887 1.1 skrll
888 1.1 skrll offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
889 1.1 skrll max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
890 1.1 skrll
891 1.1 skrll block = offset / block_size;
892 1.1 skrll last_block = max / block_size;
893 1.1 skrll if (block != last_block)
894 1.1 skrll {
895 1.1 skrll chunks_this_block = 160;
896 1.1 skrll }
897 1.1 skrll else
898 1.1 skrll {
899 1.1 skrll last_ofs = max % block_size;
900 1.1 skrll chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
901 1.1 skrll }
902 1.1 skrll
903 1.1 skrll ofs = offset % block_size;
904 1.3 christos
905 1.1 skrll plt_index = (PLT64_LARGE_THRESHOLD +
906 1.1 skrll (block * 160) +
907 1.1 skrll (ofs / insn_chunk_size));
908 1.1 skrll
909 1.1 skrll ptr = splt->contents
910 1.1 skrll + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
911 1.1 skrll + (block * block_size)
912 1.1 skrll + (chunks_this_block * insn_chunk_size)
913 1.1 skrll + (ofs / insn_chunk_size) * ptr_chunk_size;
914 1.1 skrll
915 1.1 skrll *r_offset = (bfd_vma) (ptr - splt->contents);
916 1.1 skrll
917 1.1 skrll ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
918 1.1 skrll
919 1.1 skrll /* mov %o7,%g5
920 1.1 skrll call .+8
921 1.1 skrll nop
922 1.1 skrll ldx [%o7+P],%g1
923 1.1 skrll jmpl %o7+%g1,%g1
924 1.1 skrll mov %g5,%o7 */
925 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
926 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
927 1.13 christos bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
928 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
929 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
930 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
931 1.1 skrll
932 1.1 skrll bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
933 1.1 skrll }
934 1.3 christos
935 1.1 skrll return plt_index - 4;
936 1.1 skrll }
937 1.1 skrll
938 1.1 skrll /* The format of the first PLT entry in a VxWorks executable. */
939 1.1 skrll static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
940 1.1 skrll {
941 1.1 skrll 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
942 1.1 skrll 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
943 1.1 skrll 0xc4008000, /* ld [ %g2 ], %g2 */
944 1.1 skrll 0x81c08000, /* jmp %g2 */
945 1.1 skrll 0x01000000 /* nop */
946 1.1 skrll };
947 1.1 skrll
948 1.1 skrll /* The format of subsequent PLT entries. */
949 1.1 skrll static const bfd_vma sparc_vxworks_exec_plt_entry[] =
950 1.1 skrll {
951 1.1 skrll 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
952 1.1 skrll 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
953 1.1 skrll 0xc2004000, /* ld [ %g1 ], %g1 */
954 1.1 skrll 0x81c04000, /* jmp %g1 */
955 1.1 skrll 0x01000000, /* nop */
956 1.1 skrll 0x03000000, /* sethi %hi(f@pltindex), %g1 */
957 1.1 skrll 0x10800000, /* b _PLT_resolve */
958 1.1 skrll 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
959 1.1 skrll };
960 1.1 skrll
961 1.1 skrll /* The format of the first PLT entry in a VxWorks shared object. */
962 1.1 skrll static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
963 1.1 skrll {
964 1.1 skrll 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
965 1.1 skrll 0x81c08000, /* jmp %g2 */
966 1.1 skrll 0x01000000 /* nop */
967 1.1 skrll };
968 1.1 skrll
969 1.1 skrll /* The format of subsequent PLT entries. */
970 1.1 skrll static const bfd_vma sparc_vxworks_shared_plt_entry[] =
971 1.1 skrll {
972 1.1 skrll 0x03000000, /* sethi %hi(f@got), %g1 */
973 1.1 skrll 0x82106000, /* or %g1, %lo(f@got), %g1 */
974 1.1 skrll 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
975 1.1 skrll 0x81c04000, /* jmp %g1 */
976 1.1 skrll 0x01000000, /* nop */
977 1.1 skrll 0x03000000, /* sethi %hi(f@pltindex), %g1 */
978 1.1 skrll 0x10800000, /* b _PLT_resolve */
979 1.1 skrll 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
980 1.1 skrll };
981 1.1 skrll
982 1.1 skrll #define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
983 1.1 skrll htab->put_word(bfd, val, ptr)
984 1.1 skrll
985 1.1 skrll #define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
986 1.1 skrll htab->r_info(in_rel, index, type)
987 1.1 skrll
988 1.1 skrll #define SPARC_ELF_R_SYMNDX(htab, r_info) \
989 1.1 skrll htab->r_symndx(r_info)
990 1.1 skrll
991 1.1 skrll #define SPARC_ELF_WORD_BYTES(htab) \
992 1.1 skrll htab->bytes_per_word
993 1.1 skrll
994 1.1 skrll #define SPARC_ELF_RELA_BYTES(htab) \
995 1.1 skrll htab->bytes_per_rela
996 1.1 skrll
997 1.1 skrll #define SPARC_ELF_DTPOFF_RELOC(htab) \
998 1.1 skrll htab->dtpoff_reloc
999 1.1 skrll
1000 1.1 skrll #define SPARC_ELF_DTPMOD_RELOC(htab) \
1001 1.1 skrll htab->dtpmod_reloc
1002 1.1 skrll
1003 1.1 skrll #define SPARC_ELF_TPOFF_RELOC(htab) \
1004 1.1 skrll htab->tpoff_reloc
1005 1.1 skrll
1006 1.1 skrll #define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
1007 1.1 skrll htab->build_plt_entry (obfd, splt, off, max, r_off)
1008 1.1 skrll
1009 1.1 skrll /* Create an entry in an SPARC ELF linker hash table. */
1010 1.1 skrll
1011 1.1 skrll static struct bfd_hash_entry *
1012 1.1 skrll link_hash_newfunc (struct bfd_hash_entry *entry,
1013 1.1 skrll struct bfd_hash_table *table, const char *string)
1014 1.1 skrll {
1015 1.1 skrll /* Allocate the structure if it has not already been allocated by a
1016 1.1 skrll subclass. */
1017 1.1 skrll if (entry == NULL)
1018 1.1 skrll {
1019 1.1 skrll entry = bfd_hash_allocate (table,
1020 1.1 skrll sizeof (struct _bfd_sparc_elf_link_hash_entry));
1021 1.1 skrll if (entry == NULL)
1022 1.1 skrll return entry;
1023 1.1 skrll }
1024 1.1 skrll
1025 1.1 skrll /* Call the allocation method of the superclass. */
1026 1.1 skrll entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1027 1.1 skrll if (entry != NULL)
1028 1.1 skrll {
1029 1.1 skrll struct _bfd_sparc_elf_link_hash_entry *eh;
1030 1.1 skrll
1031 1.1 skrll eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
1032 1.1 skrll eh->dyn_relocs = NULL;
1033 1.13 christos eh->tls_type = GOT_UNKNOWN;
1034 1.13 christos eh->has_got_reloc = 0;
1035 1.1 skrll eh->has_non_got_reloc = 0;
1036 1.1 skrll }
1037 1.1 skrll
1038 1.1 skrll return entry;
1039 1.1 skrll }
1040 1.1 skrll
1041 1.1 skrll /* The name of the dynamic interpreter. This is put in the .interp
1042 1.1 skrll section. */
1043 1.1 skrll
1044 1.1 skrll #define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
1045 1.1 skrll #define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
1046 1.3 christos
1047 1.3 christos /* Compute a hash of a local hash entry. We use elf_link_hash_entry
1048 1.3 christos for local symbol so that we can handle local STT_GNU_IFUNC symbols
1049 1.3 christos as global symbol. We reuse indx and dynstr_index for local symbol
1050 1.3 christos hash since they aren't used by global symbols in this backend. */
1051 1.3 christos
1052 1.3 christos static hashval_t
1053 1.3 christos elf_sparc_local_htab_hash (const void *ptr)
1054 1.3 christos {
1055 1.3 christos struct elf_link_hash_entry *h
1056 1.3 christos = (struct elf_link_hash_entry *) ptr;
1057 1.3 christos return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
1058 1.3 christos }
1059 1.3 christos
1060 1.3 christos /* Compare local hash entries. */
1061 1.3 christos
1062 1.3 christos static int
1063 1.3 christos elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
1064 1.3 christos {
1065 1.3 christos struct elf_link_hash_entry *h1
1066 1.3 christos = (struct elf_link_hash_entry *) ptr1;
1067 1.3 christos struct elf_link_hash_entry *h2
1068 1.3 christos = (struct elf_link_hash_entry *) ptr2;
1069 1.3 christos
1070 1.3 christos return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
1071 1.3 christos }
1072 1.3 christos
1073 1.3 christos /* Find and/or create a hash entry for local symbol. */
1074 1.3 christos
1075 1.3 christos static struct elf_link_hash_entry *
1076 1.3 christos elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
1077 1.3 christos bfd *abfd, const Elf_Internal_Rela *rel,
1078 1.3 christos bfd_boolean create)
1079 1.3 christos {
1080 1.3 christos struct _bfd_sparc_elf_link_hash_entry e, *ret;
1081 1.3 christos asection *sec = abfd->sections;
1082 1.3 christos unsigned long r_symndx;
1083 1.3 christos hashval_t h;
1084 1.3 christos void **slot;
1085 1.3 christos
1086 1.3 christos r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1087 1.3 christos h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
1088 1.3 christos
1089 1.3 christos e.elf.indx = sec->id;
1090 1.3 christos e.elf.dynstr_index = r_symndx;
1091 1.3 christos slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
1092 1.3 christos create ? INSERT : NO_INSERT);
1093 1.3 christos
1094 1.3 christos if (!slot)
1095 1.3 christos return NULL;
1096 1.3 christos
1097 1.3 christos if (*slot)
1098 1.3 christos {
1099 1.3 christos ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
1100 1.3 christos return &ret->elf;
1101 1.3 christos }
1102 1.3 christos
1103 1.3 christos ret = (struct _bfd_sparc_elf_link_hash_entry *)
1104 1.3 christos objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
1105 1.3 christos sizeof (struct _bfd_sparc_elf_link_hash_entry));
1106 1.3 christos if (ret)
1107 1.3 christos {
1108 1.3 christos memset (ret, 0, sizeof (*ret));
1109 1.3 christos ret->elf.indx = sec->id;
1110 1.3 christos ret->elf.dynstr_index = r_symndx;
1111 1.3 christos ret->elf.dynindx = -1;
1112 1.3 christos ret->elf.plt.offset = (bfd_vma) -1;
1113 1.3 christos ret->elf.got.offset = (bfd_vma) -1;
1114 1.3 christos *slot = ret;
1115 1.3 christos }
1116 1.3 christos return &ret->elf;
1117 1.3 christos }
1118 1.7 christos
1119 1.7 christos /* Destroy a SPARC ELF linker hash table. */
1120 1.7 christos
1121 1.7 christos static void
1122 1.7 christos _bfd_sparc_elf_link_hash_table_free (bfd *obfd)
1123 1.7 christos {
1124 1.7 christos struct _bfd_sparc_elf_link_hash_table *htab
1125 1.7 christos = (struct _bfd_sparc_elf_link_hash_table *) obfd->link.hash;
1126 1.7 christos
1127 1.7 christos if (htab->loc_hash_table)
1128 1.7 christos htab_delete (htab->loc_hash_table);
1129 1.7 christos if (htab->loc_hash_memory)
1130 1.7 christos objalloc_free ((struct objalloc *) htab->loc_hash_memory);
1131 1.7 christos _bfd_elf_link_hash_table_free (obfd);
1132 1.7 christos }
1133 1.1 skrll
1134 1.1 skrll /* Create a SPARC ELF linker hash table. */
1135 1.1 skrll
1136 1.1 skrll struct bfd_link_hash_table *
1137 1.1 skrll _bfd_sparc_elf_link_hash_table_create (bfd *abfd)
1138 1.1 skrll {
1139 1.1 skrll struct _bfd_sparc_elf_link_hash_table *ret;
1140 1.1 skrll bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
1141 1.1 skrll
1142 1.1 skrll ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
1143 1.1 skrll if (ret == NULL)
1144 1.1 skrll return NULL;
1145 1.1 skrll
1146 1.1 skrll if (ABI_64_P (abfd))
1147 1.1 skrll {
1148 1.1 skrll ret->put_word = sparc_put_word_64;
1149 1.1 skrll ret->r_info = sparc_elf_r_info_64;
1150 1.1 skrll ret->r_symndx = sparc_elf_r_symndx_64;
1151 1.1 skrll ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
1152 1.1 skrll ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
1153 1.1 skrll ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
1154 1.1 skrll ret->word_align_power = 3;
1155 1.1 skrll ret->align_power_max = 4;
1156 1.1 skrll ret->bytes_per_word = 8;
1157 1.1 skrll ret->bytes_per_rela = sizeof (Elf64_External_Rela);
1158 1.1 skrll ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
1159 1.3 christos ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
1160 1.3 christos
1161 1.3 christos ret->build_plt_entry = sparc64_plt_entry_build;
1162 1.3 christos ret->plt_header_size = PLT64_HEADER_SIZE;
1163 1.1 skrll ret->plt_entry_size = PLT64_ENTRY_SIZE;
1164 1.1 skrll }
1165 1.1 skrll else
1166 1.1 skrll {
1167 1.1 skrll ret->put_word = sparc_put_word_32;
1168 1.1 skrll ret->r_info = sparc_elf_r_info_32;
1169 1.1 skrll ret->r_symndx = sparc_elf_r_symndx_32;
1170 1.1 skrll ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
1171 1.1 skrll ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
1172 1.1 skrll ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
1173 1.1 skrll ret->word_align_power = 2;
1174 1.1 skrll ret->align_power_max = 3;
1175 1.1 skrll ret->bytes_per_word = 4;
1176 1.1 skrll ret->bytes_per_rela = sizeof (Elf32_External_Rela);
1177 1.1 skrll ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
1178 1.3 christos ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
1179 1.3 christos
1180 1.3 christos ret->build_plt_entry = sparc32_plt_entry_build;
1181 1.3 christos ret->plt_header_size = PLT32_HEADER_SIZE;
1182 1.1 skrll ret->plt_entry_size = PLT32_ENTRY_SIZE;
1183 1.1 skrll }
1184 1.1 skrll
1185 1.3 christos if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1186 1.3 christos sizeof (struct _bfd_sparc_elf_link_hash_entry),
1187 1.3 christos SPARC_ELF_DATA))
1188 1.3 christos {
1189 1.3 christos free (ret);
1190 1.3 christos return NULL;
1191 1.3 christos }
1192 1.3 christos
1193 1.3 christos ret->loc_hash_table = htab_try_create (1024,
1194 1.3 christos elf_sparc_local_htab_hash,
1195 1.3 christos elf_sparc_local_htab_eq,
1196 1.3 christos NULL);
1197 1.3 christos ret->loc_hash_memory = objalloc_create ();
1198 1.1 skrll if (!ret->loc_hash_table || !ret->loc_hash_memory)
1199 1.7 christos {
1200 1.1 skrll _bfd_sparc_elf_link_hash_table_free (abfd);
1201 1.1 skrll return NULL;
1202 1.7 christos }
1203 1.1 skrll ret->elf.root.hash_table_free = _bfd_sparc_elf_link_hash_table_free;
1204 1.1 skrll
1205 1.1 skrll return &ret->elf.root;
1206 1.1 skrll }
1207 1.1 skrll
1208 1.1 skrll /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
1209 1.1 skrll .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1210 1.1 skrll hash table. */
1211 1.1 skrll
1212 1.1 skrll bfd_boolean
1213 1.1 skrll _bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
1214 1.1 skrll struct bfd_link_info *info)
1215 1.1 skrll {
1216 1.1 skrll struct _bfd_sparc_elf_link_hash_table *htab;
1217 1.1 skrll
1218 1.3 christos htab = _bfd_sparc_elf_hash_table (info);
1219 1.1 skrll BFD_ASSERT (htab != NULL);
1220 1.1 skrll
1221 1.1 skrll if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1222 1.1 skrll return FALSE;
1223 1.1 skrll
1224 1.1 skrll if (htab->is_vxworks)
1225 1.1 skrll {
1226 1.1 skrll if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
1227 1.7 christos return FALSE;
1228 1.1 skrll if (bfd_link_pic (info))
1229 1.1 skrll {
1230 1.1 skrll htab->plt_header_size
1231 1.1 skrll = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
1232 1.1 skrll htab->plt_entry_size
1233 1.1 skrll = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
1234 1.1 skrll }
1235 1.1 skrll else
1236 1.1 skrll {
1237 1.1 skrll htab->plt_header_size
1238 1.1 skrll = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
1239 1.1 skrll htab->plt_entry_size
1240 1.1 skrll = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
1241 1.1 skrll }
1242 1.1 skrll }
1243 1.13 christos
1244 1.13 christos if (!htab->elf.splt || !htab->elf.srelplt || !htab->elf.sdynbss
1245 1.1 skrll || (!bfd_link_pic (info) && !htab->elf.srelbss))
1246 1.1 skrll abort ();
1247 1.1 skrll
1248 1.1 skrll return TRUE;
1249 1.1 skrll }
1250 1.3 christos
1251 1.3 christos static bfd_boolean
1252 1.3 christos create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
1253 1.3 christos {
1254 1.3 christos const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1255 1.3 christos struct elf_link_hash_table *htab = elf_hash_table (info);
1256 1.3 christos flagword flags, pltflags;
1257 1.3 christos asection *s;
1258 1.3 christos
1259 1.3 christos if (htab->irelifunc != NULL || htab->iplt != NULL)
1260 1.3 christos return TRUE;
1261 1.3 christos
1262 1.3 christos flags = bed->dynamic_sec_flags;
1263 1.3 christos pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
1264 1.3 christos
1265 1.3 christos s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
1266 1.15 christos if (s == NULL
1267 1.3 christos || !bfd_set_section_alignment (s, bed->plt_alignment))
1268 1.3 christos return FALSE;
1269 1.3 christos htab->iplt = s;
1270 1.3 christos
1271 1.3 christos s = bfd_make_section_with_flags (abfd, ".rela.iplt",
1272 1.3 christos flags | SEC_READONLY);
1273 1.15 christos if (s == NULL
1274 1.3 christos || !bfd_set_section_alignment (s, bed->s->log_file_align))
1275 1.3 christos return FALSE;
1276 1.3 christos htab->irelplt = s;
1277 1.3 christos
1278 1.3 christos return TRUE;
1279 1.3 christos }
1280 1.1 skrll
1281 1.1 skrll /* Copy the extra info we tack onto an elf_link_hash_entry. */
1282 1.1 skrll
1283 1.1 skrll void
1284 1.1 skrll _bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
1285 1.1 skrll struct elf_link_hash_entry *dir,
1286 1.1 skrll struct elf_link_hash_entry *ind)
1287 1.1 skrll {
1288 1.1 skrll struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
1289 1.1 skrll
1290 1.1 skrll edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
1291 1.1 skrll eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
1292 1.1 skrll
1293 1.1 skrll if (eind->dyn_relocs != NULL)
1294 1.1 skrll {
1295 1.1 skrll if (edir->dyn_relocs != NULL)
1296 1.13 christos {
1297 1.13 christos struct elf_dyn_relocs **pp;
1298 1.1 skrll struct elf_dyn_relocs *p;
1299 1.1 skrll
1300 1.1 skrll /* Add reloc counts against the indirect sym to the direct sym
1301 1.1 skrll list. Merge any entries against the same section. */
1302 1.1 skrll for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1303 1.13 christos {
1304 1.1 skrll struct elf_dyn_relocs *q;
1305 1.1 skrll
1306 1.1 skrll for (q = edir->dyn_relocs; q != NULL; q = q->next)
1307 1.1 skrll if (q->sec == p->sec)
1308 1.1 skrll {
1309 1.1 skrll q->pc_count += p->pc_count;
1310 1.1 skrll q->count += p->count;
1311 1.1 skrll *pp = p->next;
1312 1.1 skrll break;
1313 1.1 skrll }
1314 1.1 skrll if (q == NULL)
1315 1.1 skrll pp = &p->next;
1316 1.1 skrll }
1317 1.1 skrll *pp = edir->dyn_relocs;
1318 1.1 skrll }
1319 1.1 skrll
1320 1.1 skrll edir->dyn_relocs = eind->dyn_relocs;
1321 1.1 skrll eind->dyn_relocs = NULL;
1322 1.1 skrll }
1323 1.14 christos
1324 1.1 skrll if (ind->root.type == bfd_link_hash_indirect && dir->got.refcount <= 0)
1325 1.1 skrll {
1326 1.1 skrll edir->tls_type = eind->tls_type;
1327 1.1 skrll eind->tls_type = GOT_UNKNOWN;
1328 1.13 christos }
1329 1.13 christos
1330 1.13 christos /* Copy has_got_reloc and has_non_got_reloc. */
1331 1.13 christos edir->has_got_reloc |= eind->has_got_reloc;
1332 1.13 christos edir->has_non_got_reloc |= eind->has_non_got_reloc;
1333 1.1 skrll
1334 1.1 skrll _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1335 1.1 skrll }
1336 1.1 skrll
1337 1.1 skrll static int
1338 1.1 skrll sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1339 1.1 skrll int r_type, int is_local)
1340 1.1 skrll {
1341 1.1 skrll if (! ABI_64_P (abfd)
1342 1.1 skrll && r_type == R_SPARC_TLS_GD_HI22
1343 1.14 christos && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
1344 1.1 skrll return R_SPARC_REV32;
1345 1.14 christos
1346 1.1 skrll if (!bfd_link_executable (info))
1347 1.1 skrll return r_type;
1348 1.1 skrll
1349 1.1 skrll switch (r_type)
1350 1.1 skrll {
1351 1.14 christos case R_SPARC_TLS_GD_HI22:
1352 1.1 skrll return is_local ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_IE_HI22;
1353 1.14 christos case R_SPARC_TLS_GD_LO10:
1354 1.1 skrll return is_local ? R_SPARC_TLS_LE_LOX10 : R_SPARC_TLS_IE_LO10;
1355 1.1 skrll case R_SPARC_TLS_LDM_HI22:
1356 1.1 skrll return R_SPARC_TLS_LE_HIX22;
1357 1.1 skrll case R_SPARC_TLS_LDM_LO10:
1358 1.14 christos return R_SPARC_TLS_LE_LOX10;
1359 1.14 christos case R_SPARC_TLS_IE_HI22:
1360 1.14 christos return is_local ? R_SPARC_TLS_LE_HIX22 : r_type;
1361 1.14 christos case R_SPARC_TLS_IE_LO10:
1362 1.1 skrll return is_local ? R_SPARC_TLS_LE_LOX10 : r_type;
1363 1.1 skrll }
1364 1.1 skrll
1365 1.1 skrll return r_type;
1366 1.1 skrll }
1367 1.1 skrll
1368 1.1 skrll /* Look through the relocs for a section during the first phase, and
1370 1.1 skrll allocate space in the global offset table or procedure linkage
1371 1.1 skrll table. */
1372 1.1 skrll
1373 1.1 skrll bfd_boolean
1374 1.1 skrll _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1375 1.1 skrll asection *sec, const Elf_Internal_Rela *relocs)
1376 1.1 skrll {
1377 1.1 skrll struct _bfd_sparc_elf_link_hash_table *htab;
1378 1.1 skrll Elf_Internal_Shdr *symtab_hdr;
1379 1.1 skrll struct elf_link_hash_entry **sym_hashes;
1380 1.1 skrll const Elf_Internal_Rela *rel;
1381 1.1 skrll const Elf_Internal_Rela *rel_end;
1382 1.1 skrll asection *sreloc;
1383 1.1 skrll int num_relocs;
1384 1.7 christos bfd_boolean checked_tlsgd = FALSE;
1385 1.1 skrll
1386 1.1 skrll if (bfd_link_relocatable (info))
1387 1.1 skrll return TRUE;
1388 1.3 christos
1389 1.1 skrll htab = _bfd_sparc_elf_hash_table (info);
1390 1.1 skrll BFD_ASSERT (htab != NULL);
1391 1.1 skrll symtab_hdr = &elf_symtab_hdr (abfd);
1392 1.1 skrll sym_hashes = elf_sym_hashes (abfd);
1393 1.1 skrll
1394 1.1 skrll sreloc = NULL;
1395 1.3 christos
1396 1.1 skrll if (ABI_64_P (abfd))
1397 1.1 skrll num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec));
1398 1.1 skrll else
1399 1.1 skrll num_relocs = sec->reloc_count;
1400 1.1 skrll
1401 1.3 christos BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1402 1.3 christos
1403 1.3 christos if (htab->elf.dynobj == NULL)
1404 1.3 christos htab->elf.dynobj = abfd;
1405 1.3 christos if (!create_ifunc_sections (htab->elf.dynobj, info))
1406 1.1 skrll return FALSE;
1407 1.1 skrll
1408 1.1 skrll rel_end = relocs + num_relocs;
1409 1.1 skrll for (rel = relocs; rel < rel_end; rel++)
1410 1.13 christos {
1411 1.1 skrll unsigned int r_type;
1412 1.13 christos unsigned int r_symndx;
1413 1.3 christos struct elf_link_hash_entry *h;
1414 1.1 skrll struct _bfd_sparc_elf_link_hash_entry *eh;
1415 1.1 skrll Elf_Internal_Sym *isym;
1416 1.1 skrll
1417 1.1 skrll r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1418 1.1 skrll r_type = SPARC_ELF_R_TYPE (rel->r_info);
1419 1.1 skrll
1420 1.13 christos if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1421 1.14 christos {
1422 1.1 skrll /* xgettext:c-format */
1423 1.1 skrll _bfd_error_handler (_("%pB: bad symbol index: %d"), abfd, r_symndx);
1424 1.1 skrll return FALSE;
1425 1.3 christos }
1426 1.1 skrll
1427 1.3 christos isym = NULL;
1428 1.3 christos if (r_symndx < symtab_hdr->sh_info)
1429 1.14 christos {
1430 1.3 christos /* A local symbol. */
1431 1.3 christos isym = bfd_sym_from_r_symndx (&htab->sym_cache, abfd, r_symndx);
1432 1.3 christos if (isym == NULL)
1433 1.3 christos return FALSE;
1434 1.3 christos
1435 1.3 christos /* Check relocation against local STT_GNU_IFUNC symbol. */
1436 1.14 christos if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1437 1.3 christos {
1438 1.3 christos h = elf_sparc_get_local_sym_hash (htab, abfd, rel, TRUE);
1439 1.7 christos if (h == NULL)
1440 1.3 christos return FALSE;
1441 1.3 christos
1442 1.3 christos /* Fake a STT_GNU_IFUNC symbol. */
1443 1.3 christos h->type = STT_GNU_IFUNC;
1444 1.3 christos h->def_regular = 1;
1445 1.3 christos h->ref_regular = 1;
1446 1.3 christos h->forced_local = 1;
1447 1.3 christos h->root.type = bfd_link_hash_defined;
1448 1.3 christos }
1449 1.3 christos else
1450 1.1 skrll h = NULL;
1451 1.1 skrll }
1452 1.1 skrll else
1453 1.1 skrll {
1454 1.1 skrll h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1455 1.1 skrll while (h->root.type == bfd_link_hash_indirect
1456 1.1 skrll || h->root.type == bfd_link_hash_warning)
1457 1.1 skrll h = (struct elf_link_hash_entry *) h->root.u.i.link;
1458 1.14 christos }
1459 1.3 christos
1460 1.14 christos if (h && h->type == STT_GNU_IFUNC && h->def_regular)
1461 1.14 christos {
1462 1.3 christos h->ref_regular = 1;
1463 1.3 christos h->plt.refcount += 1;
1464 1.1 skrll }
1465 1.1 skrll
1466 1.1 skrll /* Compatibility with old R_SPARC_REV32 reloc conflicting
1467 1.1 skrll with R_SPARC_TLS_GD_HI22. */
1468 1.1 skrll if (! ABI_64_P (abfd) && ! checked_tlsgd)
1469 1.1 skrll switch (r_type)
1470 1.1 skrll {
1471 1.1 skrll case R_SPARC_TLS_GD_HI22:
1472 1.1 skrll {
1473 1.1 skrll const Elf_Internal_Rela *relt;
1474 1.1 skrll
1475 1.1 skrll for (relt = rel + 1; relt < rel_end; relt++)
1476 1.1 skrll if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
1477 1.1 skrll || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
1478 1.1 skrll || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
1479 1.1 skrll break;
1480 1.1 skrll checked_tlsgd = TRUE;
1481 1.1 skrll _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
1482 1.1 skrll }
1483 1.1 skrll break;
1484 1.1 skrll case R_SPARC_TLS_GD_LO10:
1485 1.1 skrll case R_SPARC_TLS_GD_ADD:
1486 1.1 skrll case R_SPARC_TLS_GD_CALL:
1487 1.1 skrll checked_tlsgd = TRUE;
1488 1.1 skrll _bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
1489 1.1 skrll break;
1490 1.1 skrll }
1491 1.13 christos
1492 1.13 christos r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
1493 1.1 skrll eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1494 1.1 skrll
1495 1.1 skrll switch (r_type)
1496 1.1 skrll {
1497 1.1 skrll case R_SPARC_TLS_LDM_HI22:
1498 1.13 christos case R_SPARC_TLS_LDM_LO10:
1499 1.13 christos htab->tls_ldm_got.refcount += 1;
1500 1.1 skrll if (eh != NULL)
1501 1.1 skrll eh->has_got_reloc = 1;
1502 1.1 skrll break;
1503 1.1 skrll
1504 1.14 christos case R_SPARC_TLS_LE_HIX22:
1505 1.1 skrll case R_SPARC_TLS_LE_LOX10:
1506 1.1 skrll if (!bfd_link_executable (info))
1507 1.1 skrll goto r_sparc_plt32;
1508 1.1 skrll break;
1509 1.1 skrll
1510 1.14 christos case R_SPARC_TLS_IE_HI22:
1511 1.1 skrll case R_SPARC_TLS_IE_LO10:
1512 1.1 skrll if (!bfd_link_executable (info))
1513 1.1 skrll info->flags |= DF_STATIC_TLS;
1514 1.1 skrll /* Fall through */
1515 1.1 skrll
1516 1.1 skrll case R_SPARC_GOT10:
1517 1.1 skrll case R_SPARC_GOT13:
1518 1.1 skrll case R_SPARC_GOT22:
1519 1.1 skrll case R_SPARC_GOTDATA_HIX22:
1520 1.1 skrll case R_SPARC_GOTDATA_LOX10:
1521 1.1 skrll case R_SPARC_GOTDATA_OP_HIX22:
1522 1.1 skrll case R_SPARC_GOTDATA_OP_LOX10:
1523 1.1 skrll case R_SPARC_TLS_GD_HI22:
1524 1.1 skrll case R_SPARC_TLS_GD_LO10:
1525 1.1 skrll /* This symbol requires a global offset table entry. */
1526 1.1 skrll {
1527 1.1 skrll int tls_type, old_tls_type;
1528 1.1 skrll
1529 1.1 skrll switch (r_type)
1530 1.1 skrll {
1531 1.1 skrll case R_SPARC_TLS_GD_HI22:
1532 1.1 skrll case R_SPARC_TLS_GD_LO10:
1533 1.1 skrll tls_type = GOT_TLS_GD;
1534 1.1 skrll break;
1535 1.1 skrll case R_SPARC_TLS_IE_HI22:
1536 1.1 skrll case R_SPARC_TLS_IE_LO10:
1537 1.14 christos tls_type = GOT_TLS_IE;
1538 1.14 christos break;
1539 1.14 christos default:
1540 1.1 skrll tls_type = GOT_NORMAL;
1541 1.1 skrll break;
1542 1.1 skrll }
1543 1.1 skrll
1544 1.1 skrll if (h != NULL)
1545 1.1 skrll {
1546 1.1 skrll h->got.refcount += 1;
1547 1.1 skrll old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1548 1.1 skrll }
1549 1.1 skrll else
1550 1.1 skrll {
1551 1.1 skrll bfd_signed_vma *local_got_refcounts;
1552 1.1 skrll
1553 1.1 skrll /* This is a global offset table entry for a local symbol. */
1554 1.1 skrll local_got_refcounts = elf_local_got_refcounts (abfd);
1555 1.1 skrll if (local_got_refcounts == NULL)
1556 1.1 skrll {
1557 1.1 skrll bfd_size_type size;
1558 1.1 skrll
1559 1.1 skrll size = symtab_hdr->sh_info;
1560 1.1 skrll size *= (sizeof (bfd_signed_vma) + sizeof(char));
1561 1.1 skrll local_got_refcounts = ((bfd_signed_vma *)
1562 1.1 skrll bfd_zalloc (abfd, size));
1563 1.1 skrll if (local_got_refcounts == NULL)
1564 1.1 skrll return FALSE;
1565 1.1 skrll elf_local_got_refcounts (abfd) = local_got_refcounts;
1566 1.1 skrll _bfd_sparc_elf_local_got_tls_type (abfd)
1567 1.3 christos = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1568 1.14 christos }
1569 1.14 christos
1570 1.14 christos if (r_type != R_SPARC_GOTDATA_OP_HIX22
1571 1.14 christos && r_type != R_SPARC_GOTDATA_OP_LOX10)
1572 1.14 christos local_got_refcounts[r_symndx] += 1;
1573 1.14 christos
1574 1.1 skrll old_tls_type
1575 1.1 skrll = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
1576 1.14 christos }
1577 1.14 christos
1578 1.14 christos /* If a TLS symbol is accessed using IE at least once, there is no
1579 1.1 skrll point in using the dynamic model for it. */
1580 1.14 christos if (old_tls_type != tls_type)
1581 1.14 christos {
1582 1.14 christos if (old_tls_type == GOT_UNKNOWN)
1583 1.14 christos ;
1584 1.14 christos else if (old_tls_type == GOT_TLS_GD && tls_type == GOT_TLS_IE)
1585 1.1 skrll ;
1586 1.1 skrll else if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1587 1.1 skrll tls_type = old_tls_type;
1588 1.13 christos else
1589 1.13 christos {
1590 1.14 christos _bfd_error_handler
1591 1.1 skrll /* xgettext:c-format */
1592 1.1 skrll (_("%pB: `%s' accessed both as normal and thread local symbol"),
1593 1.1 skrll abfd, h ? h->root.root.string : "<local>");
1594 1.1 skrll return FALSE;
1595 1.1 skrll }
1596 1.1 skrll
1597 1.1 skrll if (h != NULL)
1598 1.1 skrll _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
1599 1.1 skrll else
1600 1.1 skrll _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1601 1.1 skrll }
1602 1.14 christos }
1603 1.14 christos
1604 1.14 christos if (!htab->elf.sgot
1605 1.14 christos && !_bfd_elf_create_got_section (htab->elf.dynobj, info))
1606 1.14 christos return FALSE;
1607 1.1 skrll
1608 1.14 christos if (eh != NULL)
1609 1.14 christos {
1610 1.14 christos eh->has_got_reloc = 1;
1611 1.14 christos if (r_type == R_SPARC_GOT10
1612 1.14 christos || r_type == R_SPARC_GOT13
1613 1.1 skrll || r_type == R_SPARC_GOT22)
1614 1.1 skrll eh->has_old_style_got_reloc = 1;
1615 1.1 skrll }
1616 1.1 skrll break;
1617 1.1 skrll
1618 1.14 christos case R_SPARC_TLS_GD_CALL:
1619 1.1 skrll case R_SPARC_TLS_LDM_CALL:
1620 1.14 christos if (bfd_link_executable (info))
1621 1.14 christos break;
1622 1.14 christos
1623 1.14 christos /* Essentially R_SPARC_WPLT30 relocs against __tls_get_addr. */
1624 1.14 christos h = (struct elf_link_hash_entry *)
1625 1.14 christos bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
1626 1.1 skrll FALSE, TRUE);
1627 1.1 skrll BFD_ASSERT (h != NULL);
1628 1.14 christos /* Fall through */
1629 1.1 skrll
1630 1.14 christos case R_SPARC_WPLT30:
1631 1.1 skrll case R_SPARC_PLT32:
1632 1.1 skrll case R_SPARC_PLT64:
1633 1.1 skrll case R_SPARC_HIPLT22:
1634 1.1 skrll case R_SPARC_LOPLT10:
1635 1.1 skrll case R_SPARC_PCPLT32:
1636 1.14 christos case R_SPARC_PCPLT22:
1637 1.14 christos case R_SPARC_PCPLT10:
1638 1.1 skrll /* This symbol requires a procedure linkage table entry.
1639 1.1 skrll We actually build the entry in adjust_dynamic_symbol,
1640 1.1 skrll because this might be a case of linking PIC code without
1641 1.1 skrll linking in any dynamic objects, in which case we don't
1642 1.1 skrll need to generate a procedure linkage table after all. */
1643 1.1 skrll
1644 1.1 skrll if (h == NULL)
1645 1.1 skrll {
1646 1.1 skrll if (! ABI_64_P (abfd))
1647 1.1 skrll {
1648 1.1 skrll /* The Solaris native assembler will generate a WPLT30
1649 1.1 skrll reloc for a local symbol if you assemble a call from
1650 1.14 christos one section to another when using -K pic. We treat
1651 1.1 skrll it as WDISP30. */
1652 1.1 skrll if (r_type == R_SPARC_PLT32)
1653 1.1 skrll goto r_sparc_plt32;
1654 1.3 christos break;
1655 1.3 christos }
1656 1.3 christos /* PR 7027: We need similar behaviour for 64-bit binaries. */
1657 1.1 skrll else if (r_type == R_SPARC_WPLT30)
1658 1.1 skrll break;
1659 1.13 christos
1660 1.1 skrll /* It does not make sense to have a procedure linkage
1661 1.1 skrll table entry for a local symbol. */
1662 1.1 skrll bfd_set_error (bfd_error_bad_value);
1663 1.1 skrll return FALSE;
1664 1.1 skrll }
1665 1.1 skrll
1666 1.14 christos h->needs_plt = 1;
1667 1.14 christos
1668 1.1 skrll if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
1669 1.1 skrll goto r_sparc_plt32;
1670 1.13 christos
1671 1.13 christos h->plt.refcount += 1;
1672 1.13 christos
1673 1.1 skrll eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1674 1.1 skrll eh->has_got_reloc = 1;
1675 1.1 skrll break;
1676 1.1 skrll
1677 1.1 skrll case R_SPARC_PC10:
1678 1.1 skrll case R_SPARC_PC22:
1679 1.1 skrll case R_SPARC_PC_HH22:
1680 1.1 skrll case R_SPARC_PC_HM10:
1681 1.1 skrll case R_SPARC_PC_LM22:
1682 1.1 skrll if (h != NULL)
1683 1.1 skrll h->non_got_ref = 1;
1684 1.1 skrll
1685 1.1 skrll if (h != NULL
1686 1.1 skrll && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1687 1.1 skrll break;
1688 1.1 skrll /* Fall through. */
1689 1.1 skrll
1690 1.1 skrll case R_SPARC_DISP8:
1691 1.1 skrll case R_SPARC_DISP16:
1692 1.1 skrll case R_SPARC_DISP32:
1693 1.1 skrll case R_SPARC_DISP64:
1694 1.1 skrll case R_SPARC_WDISP30:
1695 1.1 skrll case R_SPARC_WDISP22:
1696 1.6 christos case R_SPARC_WDISP19:
1697 1.1 skrll case R_SPARC_WDISP16:
1698 1.1 skrll case R_SPARC_WDISP10:
1699 1.1 skrll case R_SPARC_8:
1700 1.1 skrll case R_SPARC_16:
1701 1.1 skrll case R_SPARC_32:
1702 1.1 skrll case R_SPARC_HI22:
1703 1.1 skrll case R_SPARC_22:
1704 1.1 skrll case R_SPARC_13:
1705 1.1 skrll case R_SPARC_LO10:
1706 1.1 skrll case R_SPARC_UA16:
1707 1.1 skrll case R_SPARC_UA32:
1708 1.1 skrll case R_SPARC_10:
1709 1.1 skrll case R_SPARC_11:
1710 1.1 skrll case R_SPARC_64:
1711 1.1 skrll case R_SPARC_OLO10:
1712 1.1 skrll case R_SPARC_HH22:
1713 1.1 skrll case R_SPARC_HM10:
1714 1.1 skrll case R_SPARC_LM22:
1715 1.1 skrll case R_SPARC_7:
1716 1.1 skrll case R_SPARC_5:
1717 1.1 skrll case R_SPARC_6:
1718 1.1 skrll case R_SPARC_HIX22:
1719 1.1 skrll case R_SPARC_LOX10:
1720 1.1 skrll case R_SPARC_H44:
1721 1.6 christos case R_SPARC_M44:
1722 1.1 skrll case R_SPARC_L44:
1723 1.1 skrll case R_SPARC_H34:
1724 1.1 skrll case R_SPARC_UA64:
1725 1.1 skrll if (h != NULL)
1726 1.13 christos h->non_got_ref = 1;
1727 1.13 christos
1728 1.13 christos if (eh != NULL && (sec->flags & SEC_CODE) != 0)
1729 1.1 skrll eh->has_non_got_reloc = 1;
1730 1.7 christos
1731 1.1 skrll r_sparc_plt32:
1732 1.1 skrll if (h != NULL && !bfd_link_pic (info))
1733 1.1 skrll {
1734 1.1 skrll /* We may need a .plt entry if the function this reloc
1735 1.1 skrll refers to is in a shared lib. */
1736 1.1 skrll h->plt.refcount += 1;
1737 1.1 skrll }
1738 1.1 skrll
1739 1.1 skrll /* If we are creating a shared library, and this is a reloc
1740 1.1 skrll against a global symbol, or a non PC relative reloc
1741 1.1 skrll against a local symbol, then we need to copy the reloc
1742 1.1 skrll into the shared library. However, if we are linking with
1743 1.1 skrll -Bsymbolic, we do not need to copy a reloc against a
1744 1.1 skrll global symbol which is defined in an object we are
1745 1.1 skrll including in the link (i.e., DEF_REGULAR is set). At
1746 1.1 skrll this point we have not seen all the input files, so it is
1747 1.1 skrll possible that DEF_REGULAR is not set now but will be set
1748 1.1 skrll later (it is never cleared). In case of a weak definition,
1749 1.1 skrll DEF_REGULAR may be cleared later by a strong definition in
1750 1.1 skrll a shared library. We account for that possibility below by
1751 1.1 skrll storing information in the relocs_copied field of the hash
1752 1.1 skrll table entry. A similar situation occurs when creating
1753 1.1 skrll shared libraries and symbol visibility changes render the
1754 1.1 skrll symbol local.
1755 1.1 skrll
1756 1.1 skrll If on the other hand, we are creating an executable, we
1757 1.1 skrll may need to keep relocations for symbols satisfied by a
1758 1.7 christos dynamic library if we manage to avoid copy relocs for the
1759 1.1 skrll symbol. */
1760 1.1 skrll if ((bfd_link_pic (info)
1761 1.1 skrll && (sec->flags & SEC_ALLOC) != 0
1762 1.3 christos && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1763 1.1 skrll || (h != NULL
1764 1.1 skrll && (! SYMBOLIC_BIND (info, h)
1765 1.7 christos || h->root.type == bfd_link_hash_defweak
1766 1.1 skrll || !h->def_regular))))
1767 1.1 skrll || (!bfd_link_pic (info)
1768 1.1 skrll && (sec->flags & SEC_ALLOC) != 0
1769 1.3 christos && h != NULL
1770 1.7 christos && (h->root.type == bfd_link_hash_defweak
1771 1.3 christos || !h->def_regular))
1772 1.3 christos || (!bfd_link_pic (info)
1773 1.1 skrll && h != NULL
1774 1.13 christos && h->type == STT_GNU_IFUNC))
1775 1.13 christos {
1776 1.1 skrll struct elf_dyn_relocs *p;
1777 1.1 skrll struct elf_dyn_relocs **head;
1778 1.1 skrll
1779 1.1 skrll /* When creating a shared object, we must copy these
1780 1.1 skrll relocs into the output file. We create a reloc
1781 1.1 skrll section in dynobj and make room for the reloc. */
1782 1.3 christos if (sreloc == NULL)
1783 1.3 christos {
1784 1.3 christos sreloc = _bfd_elf_make_dynamic_reloc_section
1785 1.1 skrll (sec, htab->elf.dynobj, htab->word_align_power,
1786 1.3 christos abfd, /*rela?*/ TRUE);
1787 1.1 skrll
1788 1.1 skrll if (sreloc == NULL)
1789 1.1 skrll return FALSE;
1790 1.1 skrll }
1791 1.1 skrll
1792 1.1 skrll /* If this is a global symbol, we count the number of
1793 1.1 skrll relocations we need for this symbol. */
1794 1.1 skrll if (h != NULL)
1795 1.1 skrll head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs;
1796 1.1 skrll else
1797 1.1 skrll {
1798 1.1 skrll /* Track dynamic relocs needed for local syms too.
1799 1.1 skrll We really need local syms available to do this
1800 1.1 skrll easily. Oh well. */
1801 1.1 skrll asection *s;
1802 1.3 christos void *vpp;
1803 1.3 christos
1804 1.1 skrll BFD_ASSERT (isym != NULL);
1805 1.3 christos s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1806 1.1 skrll if (s == NULL)
1807 1.1 skrll s = sec;
1808 1.13 christos
1809 1.1 skrll vpp = &elf_section_data (s)->local_dynrel;
1810 1.1 skrll head = (struct elf_dyn_relocs **) vpp;
1811 1.1 skrll }
1812 1.1 skrll
1813 1.1 skrll p = *head;
1814 1.1 skrll if (p == NULL || p->sec != sec)
1815 1.13 christos {
1816 1.1 skrll bfd_size_type amt = sizeof *p;
1817 1.1 skrll p = ((struct elf_dyn_relocs *)
1818 1.1 skrll bfd_alloc (htab->elf.dynobj, amt));
1819 1.1 skrll if (p == NULL)
1820 1.1 skrll return FALSE;
1821 1.1 skrll p->next = *head;
1822 1.1 skrll *head = p;
1823 1.1 skrll p->sec = sec;
1824 1.1 skrll p->count = 0;
1825 1.1 skrll p->pc_count = 0;
1826 1.1 skrll }
1827 1.1 skrll
1828 1.1 skrll p->count += 1;
1829 1.1 skrll if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1830 1.1 skrll p->pc_count += 1;
1831 1.1 skrll }
1832 1.1 skrll
1833 1.1 skrll break;
1834 1.1 skrll
1835 1.1 skrll case R_SPARC_GNU_VTINHERIT:
1836 1.1 skrll if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1837 1.1 skrll return FALSE;
1838 1.1 skrll break;
1839 1.15 christos
1840 1.1 skrll case R_SPARC_GNU_VTENTRY:
1841 1.1 skrll if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1842 1.1 skrll return FALSE;
1843 1.1 skrll break;
1844 1.1 skrll
1845 1.1 skrll case R_SPARC_REGISTER:
1846 1.1 skrll /* Nothing to do. */
1847 1.1 skrll break;
1848 1.1 skrll
1849 1.1 skrll default:
1850 1.1 skrll break;
1851 1.1 skrll }
1852 1.1 skrll }
1853 1.1 skrll
1854 1.1 skrll return TRUE;
1855 1.1 skrll }
1856 1.1 skrll
1857 1.1 skrll asection *
1859 1.1 skrll _bfd_sparc_elf_gc_mark_hook (asection *sec,
1860 1.1 skrll struct bfd_link_info *info,
1861 1.1 skrll Elf_Internal_Rela *rel,
1862 1.1 skrll struct elf_link_hash_entry *h,
1863 1.1 skrll Elf_Internal_Sym *sym)
1864 1.1 skrll {
1865 1.1 skrll if (h != NULL)
1866 1.1 skrll switch (SPARC_ELF_R_TYPE (rel->r_info))
1867 1.1 skrll {
1868 1.1 skrll case R_SPARC_GNU_VTINHERIT:
1869 1.1 skrll case R_SPARC_GNU_VTENTRY:
1870 1.14 christos return NULL;
1871 1.6 christos }
1872 1.6 christos
1873 1.6 christos if (!bfd_link_executable (info))
1874 1.6 christos {
1875 1.6 christos switch (SPARC_ELF_R_TYPE (rel->r_info))
1876 1.6 christos {
1877 1.6 christos case R_SPARC_TLS_GD_CALL:
1878 1.6 christos case R_SPARC_TLS_LDM_CALL:
1879 1.6 christos /* This reloc implicitly references __tls_get_addr. We know
1880 1.6 christos another reloc will reference the same symbol as the one
1881 1.6 christos on this reloc, so the real symbol and section will be
1882 1.6 christos gc marked when processing the other reloc. That lets
1883 1.6 christos us handle __tls_get_addr here. */
1884 1.6 christos h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
1885 1.13 christos FALSE, FALSE, TRUE);
1886 1.13 christos BFD_ASSERT (h != NULL);
1887 1.6 christos h->mark = 1;
1888 1.6 christos if (h->is_weakalias)
1889 1.6 christos weakdef (h)->mark = 1;
1890 1.6 christos sym = NULL;
1891 1.1 skrll }
1892 1.1 skrll }
1893 1.1 skrll
1894 1.6 christos return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1895 1.6 christos }
1896 1.6 christos
1897 1.6 christos static Elf_Internal_Rela *
1898 1.6 christos sparc_elf_find_reloc_at_ofs (Elf_Internal_Rela *rel,
1899 1.6 christos Elf_Internal_Rela *relend,
1900 1.6 christos bfd_vma offset)
1901 1.6 christos {
1902 1.6 christos while (rel < relend)
1903 1.6 christos {
1904 1.6 christos if (rel->r_offset == offset)
1905 1.6 christos return rel;
1906 1.6 christos rel++;
1907 1.6 christos }
1908 1.13 christos return NULL;
1909 1.13 christos }
1910 1.13 christos
1911 1.1 skrll /* Remove undefined weak symbol from the dynamic symbol table if it
1912 1.13 christos is resolved to 0. */
1913 1.13 christos
1914 1.1 skrll bfd_boolean
1915 1.13 christos _bfd_sparc_elf_fixup_symbol (struct bfd_link_info *info,
1916 1.13 christos struct elf_link_hash_entry *h)
1917 1.13 christos {
1918 1.13 christos if (h->dynindx != -1
1919 1.13 christos && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info,
1920 1.13 christos _bfd_sparc_elf_hash_entry (h)))
1921 1.13 christos {
1922 1.13 christos h->dynindx = -1;
1923 1.13 christos _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1924 1.13 christos h->dynstr_index);
1925 1.1 skrll }
1926 1.13 christos return TRUE;
1927 1.1 skrll }
1928 1.13 christos
1929 1.13 christos /* Find dynamic relocs for H that apply to read-only sections. */
1930 1.13 christos
1931 1.13 christos static asection *
1932 1.1 skrll readonly_dynrelocs (struct elf_link_hash_entry *h)
1933 1.13 christos {
1934 1.1 skrll struct elf_dyn_relocs *p;
1935 1.13 christos
1936 1.1 skrll for (p = _bfd_sparc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
1937 1.13 christos {
1938 1.13 christos asection *s = p->sec->output_section;
1939 1.1 skrll
1940 1.13 christos if (s != NULL && (s->flags & SEC_READONLY) != 0)
1941 1.1 skrll return p->sec;
1942 1.1 skrll }
1943 1.1 skrll return NULL;
1944 1.1 skrll }
1945 1.1 skrll
1946 1.1 skrll /* Adjust a symbol defined by a dynamic object and referenced by a
1947 1.1 skrll regular object. The current definition is in some section of the
1948 1.1 skrll dynamic object, but we're not including those sections. We have to
1949 1.1 skrll change the definition to something the rest of the link can
1950 1.1 skrll understand. */
1951 1.1 skrll
1952 1.1 skrll bfd_boolean
1953 1.1 skrll _bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1954 1.13 christos struct elf_link_hash_entry *h)
1955 1.1 skrll {
1956 1.1 skrll struct _bfd_sparc_elf_link_hash_table *htab;
1957 1.3 christos asection *s, *srel;
1958 1.1 skrll
1959 1.1 skrll htab = _bfd_sparc_elf_hash_table (info);
1960 1.1 skrll BFD_ASSERT (htab != NULL);
1961 1.1 skrll
1962 1.3 christos /* Make sure we know what is going on here. */
1963 1.13 christos BFD_ASSERT (htab->elf.dynobj != NULL
1964 1.1 skrll && (h->needs_plt
1965 1.1 skrll || h->type == STT_GNU_IFUNC
1966 1.1 skrll || h->is_weakalias
1967 1.1 skrll || (h->def_dynamic
1968 1.1 skrll && h->ref_regular
1969 1.1 skrll && !h->def_regular)));
1970 1.1 skrll
1971 1.1 skrll /* If this is a function, put it in the procedure linkage table. We
1972 1.1 skrll will fill in the contents of the procedure linkage table later
1973 1.1 skrll (although we could actually do it here). The STT_NOTYPE
1974 1.1 skrll condition is a hack specifically for the Oracle libraries
1975 1.1 skrll delivered for Solaris; for some inexplicable reason, they define
1976 1.3 christos some of their functions as STT_NOTYPE when they really should be
1977 1.1 skrll STT_FUNC. */
1978 1.1 skrll if (h->type == STT_FUNC
1979 1.1 skrll || h->type == STT_GNU_IFUNC
1980 1.1 skrll || h->needs_plt
1981 1.1 skrll || (h->type == STT_NOTYPE
1982 1.1 skrll && (h->root.type == bfd_link_hash_defined
1983 1.1 skrll || h->root.type == bfd_link_hash_defweak)
1984 1.3 christos && (h->root.u.def.section->flags & SEC_CODE) != 0))
1985 1.3 christos {
1986 1.14 christos if (h->plt.refcount <= 0
1987 1.14 christos || (h->type != STT_GNU_IFUNC
1988 1.1 skrll && (SYMBOL_CALLS_LOCAL (info, h)
1989 1.1 skrll || (h->root.type == bfd_link_hash_undefweak
1990 1.1 skrll && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT))))
1991 1.1 skrll {
1992 1.1 skrll /* This case can occur if we saw a WPLT30 reloc in an input
1993 1.1 skrll file, but the symbol was never referred to by a dynamic
1994 1.1 skrll object, or if all references were garbage collected. In
1995 1.1 skrll such a case, we don't actually need to build a procedure
1996 1.1 skrll linkage table, and we can just do a WDISP30 reloc instead. */
1997 1.1 skrll h->plt.offset = (bfd_vma) -1;
1998 1.1 skrll h->needs_plt = 0;
1999 1.1 skrll }
2000 1.1 skrll
2001 1.1 skrll return TRUE;
2002 1.1 skrll }
2003 1.1 skrll else
2004 1.1 skrll h->plt.offset = (bfd_vma) -1;
2005 1.1 skrll
2006 1.13 christos /* If this is a weak symbol, and there is a real definition, the
2007 1.1 skrll processor independent code will have arranged for us to see the
2008 1.13 christos real definition first, and we can just use the same value. */
2009 1.13 christos if (h->is_weakalias)
2010 1.13 christos {
2011 1.13 christos struct elf_link_hash_entry *def = weakdef (h);
2012 1.1 skrll BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2013 1.1 skrll h->root.u.def.section = def->root.u.def.section;
2014 1.1 skrll h->root.u.def.value = def->root.u.def.value;
2015 1.1 skrll return TRUE;
2016 1.1 skrll }
2017 1.1 skrll
2018 1.1 skrll /* This is a reference to a symbol defined by a dynamic object which
2019 1.1 skrll is not a function. */
2020 1.1 skrll
2021 1.1 skrll /* If we are creating a shared library, we must presume that the
2022 1.7 christos only references to the symbol are via the global offset table.
2023 1.1 skrll For such cases we need not do anything here; the relocations will
2024 1.1 skrll be handled correctly by relocate_section. */
2025 1.1 skrll if (bfd_link_pic (info))
2026 1.1 skrll return TRUE;
2027 1.1 skrll
2028 1.1 skrll /* If there are no references to this symbol that do not use the
2029 1.1 skrll GOT, we don't need to generate a copy reloc. */
2030 1.3 christos if (!h->non_got_ref)
2031 1.3 christos return TRUE;
2032 1.3 christos
2033 1.3 christos /* If -z nocopyreloc was given, we won't generate them either. */
2034 1.3 christos if (info->nocopyreloc)
2035 1.3 christos {
2036 1.3 christos h->non_got_ref = 0;
2037 1.13 christos return TRUE;
2038 1.1 skrll }
2039 1.13 christos
2040 1.1 skrll /* If we don't find any dynamic relocs in read-only sections, then
2041 1.1 skrll we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2042 1.1 skrll if (!readonly_dynrelocs (h))
2043 1.1 skrll {
2044 1.1 skrll h->non_got_ref = 0;
2045 1.1 skrll return TRUE;
2046 1.1 skrll }
2047 1.1 skrll
2048 1.1 skrll /* We must allocate the symbol in our .dynbss section, which will
2049 1.1 skrll become part of the .bss section of the executable. There will be
2050 1.1 skrll an entry for this symbol in the .dynsym section. The dynamic
2051 1.1 skrll object will contain position independent code, so all references
2052 1.1 skrll from the dynamic object to this symbol will go through the global
2053 1.1 skrll offset table. The dynamic linker will use the .dynsym entry to
2054 1.1 skrll determine the address it must put in the global offset table, so
2055 1.1 skrll both the dynamic object and the regular object will refer to the
2056 1.1 skrll same memory location for the variable. */
2057 1.1 skrll
2058 1.1 skrll /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
2059 1.13 christos to copy the initial value out of the dynamic object and into the
2060 1.13 christos runtime process image. We need to remember the offset into the
2061 1.13 christos .rel.bss section we are going to use. */
2062 1.13 christos if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2063 1.13 christos {
2064 1.13 christos s = htab->elf.sdynrelro;
2065 1.13 christos srel = htab->elf.sreldynrelro;
2066 1.13 christos }
2067 1.13 christos else
2068 1.13 christos {
2069 1.6 christos s = htab->elf.sdynbss;
2070 1.1 skrll srel = htab->elf.srelbss;
2071 1.13 christos }
2072 1.1 skrll if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2073 1.1 skrll {
2074 1.1 skrll srel->size += SPARC_ELF_RELA_BYTES (htab);
2075 1.7 christos h->needs_copy = 1;
2076 1.1 skrll }
2077 1.1 skrll
2078 1.1 skrll return _bfd_elf_adjust_dynamic_copy (info, h, s);
2079 1.1 skrll }
2080 1.1 skrll
2081 1.1 skrll /* Allocate space in .plt, .got and associated reloc sections for
2082 1.6 christos dynamic relocs. */
2083 1.1 skrll
2084 1.1 skrll static bfd_boolean
2085 1.1 skrll allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2086 1.1 skrll {
2087 1.13 christos struct bfd_link_info *info;
2088 1.13 christos struct _bfd_sparc_elf_link_hash_table *htab;
2089 1.1 skrll struct _bfd_sparc_elf_link_hash_entry *eh;
2090 1.1 skrll struct elf_dyn_relocs *p;
2091 1.1 skrll bfd_boolean resolved_to_zero;
2092 1.1 skrll
2093 1.1 skrll if (h->root.type == bfd_link_hash_indirect)
2094 1.1 skrll return TRUE;
2095 1.3 christos
2096 1.1 skrll info = (struct bfd_link_info *) inf;
2097 1.13 christos htab = _bfd_sparc_elf_hash_table (info);
2098 1.13 christos BFD_ASSERT (htab != NULL);
2099 1.13 christos
2100 1.3 christos eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2101 1.3 christos resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
2102 1.3 christos
2103 1.3 christos if ((htab->elf.dynamic_sections_created
2104 1.3 christos && h->plt.refcount > 0)
2105 1.1 skrll || (h->type == STT_GNU_IFUNC
2106 1.14 christos && h->def_regular
2107 1.14 christos && h->ref_regular))
2108 1.13 christos {
2109 1.14 christos /* Undefined weak syms won't yet be marked as dynamic. */
2110 1.14 christos if (h->root.type == bfd_link_hash_undefweak
2111 1.1 skrll && !resolved_to_zero
2112 1.1 skrll && h->dynindx == -1
2113 1.1 skrll && !h->forced_local)
2114 1.1 skrll {
2115 1.1 skrll if (! bfd_elf_link_record_dynamic_symbol (info, h))
2116 1.7 christos return FALSE;
2117 1.3 christos }
2118 1.3 christos
2119 1.1 skrll if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)
2120 1.3 christos || (h->type == STT_GNU_IFUNC
2121 1.3 christos && h->def_regular))
2122 1.3 christos {
2123 1.3 christos asection *s = htab->elf.splt;
2124 1.1 skrll
2125 1.1 skrll if (s == NULL)
2126 1.1 skrll s = htab->elf.iplt;
2127 1.1 skrll
2128 1.1 skrll /* Allocate room for the header. */
2129 1.1 skrll if (s->size == 0)
2130 1.1 skrll {
2131 1.7 christos s->size = htab->plt_header_size;
2132 1.1 skrll
2133 1.1 skrll /* Allocate space for the .rela.plt.unloaded relocations. */
2134 1.1 skrll if (htab->is_vxworks && !bfd_link_pic (info))
2135 1.1 skrll htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
2136 1.1 skrll }
2137 1.1 skrll
2138 1.1 skrll /* The procedure linkage table size is bounded by the magnitude
2139 1.1 skrll of the offset we can describe in the entry. */
2140 1.1 skrll if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
2141 1.1 skrll (((bfd_vma)1 << 31) << 1) : 0x400000))
2142 1.1 skrll {
2143 1.1 skrll bfd_set_error (bfd_error_bad_value);
2144 1.1 skrll return FALSE;
2145 1.1 skrll }
2146 1.1 skrll
2147 1.1 skrll if (SPARC_ELF_WORD_BYTES(htab) == 8
2148 1.1 skrll && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
2149 1.1 skrll {
2150 1.1 skrll bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
2151 1.1 skrll
2152 1.1 skrll
2153 1.1 skrll off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
2154 1.1 skrll
2155 1.1 skrll h->plt.offset = (s->size - (off * 8));
2156 1.1 skrll }
2157 1.1 skrll else
2158 1.1 skrll h->plt.offset = s->size;
2159 1.1 skrll
2160 1.1 skrll /* If this symbol is not defined in a regular file, and we are
2161 1.1 skrll not generating a shared library, then set the symbol to this
2162 1.7 christos location in the .plt. This is required to make function
2163 1.1 skrll pointers compare as equal between the normal executable and
2164 1.1 skrll the shared library. */
2165 1.1 skrll if (! bfd_link_pic (info)
2166 1.1 skrll && !h->def_regular)
2167 1.1 skrll {
2168 1.1 skrll h->root.u.def.section = s;
2169 1.1 skrll h->root.u.def.value = h->plt.offset;
2170 1.1 skrll }
2171 1.1 skrll
2172 1.13 christos /* Make room for this entry. */
2173 1.13 christos s->size += htab->plt_entry_size;
2174 1.13 christos
2175 1.13 christos /* There should be no PLT relocations against resolved undefined
2176 1.13 christos weak symbols in the executable. */
2177 1.13 christos if (!resolved_to_zero)
2178 1.13 christos {
2179 1.13 christos /* We also need to make an entry in the .rela.plt section. */
2180 1.13 christos if (s == htab->elf.splt)
2181 1.13 christos htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
2182 1.1 skrll else
2183 1.1 skrll htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
2184 1.1 skrll }
2185 1.1 skrll
2186 1.3 christos if (htab->is_vxworks)
2187 1.1 skrll {
2188 1.1 skrll /* Allocate space for the .got.plt entry. */
2189 1.7 christos htab->elf.sgotplt->size += 4;
2190 1.1 skrll
2191 1.1 skrll /* ...and for the .rela.plt.unloaded relocations. */
2192 1.1 skrll if (!bfd_link_pic (info))
2193 1.1 skrll htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
2194 1.1 skrll }
2195 1.1 skrll }
2196 1.1 skrll else
2197 1.1 skrll {
2198 1.1 skrll h->plt.offset = (bfd_vma) -1;
2199 1.1 skrll h->needs_plt = 0;
2200 1.1 skrll }
2201 1.1 skrll }
2202 1.1 skrll else
2203 1.1 skrll {
2204 1.1 skrll h->plt.offset = (bfd_vma) -1;
2205 1.1 skrll h->needs_plt = 0;
2206 1.1 skrll }
2207 1.1 skrll
2208 1.14 christos /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
2209 1.1 skrll make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
2210 1.1 skrll if (h->got.refcount > 0
2211 1.1 skrll && bfd_link_executable (info)
2212 1.1 skrll && h->dynindx == -1
2213 1.1 skrll && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2214 1.1 skrll h->got.offset = (bfd_vma) -1;
2215 1.1 skrll else if (h->got.refcount > 0)
2216 1.1 skrll {
2217 1.1 skrll asection *s;
2218 1.14 christos bfd_boolean dyn;
2219 1.14 christos int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2220 1.13 christos
2221 1.14 christos /* Undefined weak syms won't yet be marked as dynamic. */
2222 1.14 christos if (h->root.type == bfd_link_hash_undefweak
2223 1.1 skrll && !resolved_to_zero
2224 1.1 skrll && h->dynindx == -1
2225 1.1 skrll && !h->forced_local)
2226 1.1 skrll {
2227 1.1 skrll if (! bfd_elf_link_record_dynamic_symbol (info, h))
2228 1.3 christos return FALSE;
2229 1.1 skrll }
2230 1.1 skrll
2231 1.1 skrll s = htab->elf.sgot;
2232 1.1 skrll h->got.offset = s->size;
2233 1.1 skrll s->size += SPARC_ELF_WORD_BYTES (htab);
2234 1.1 skrll /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
2235 1.1 skrll if (tls_type == GOT_TLS_GD)
2236 1.14 christos s->size += SPARC_ELF_WORD_BYTES (htab);
2237 1.1 skrll dyn = htab->elf.dynamic_sections_created;
2238 1.3 christos /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
2239 1.3 christos R_SPARC_TLS_GD_{HI22,LO10} needs one if local and two if global. */
2240 1.3 christos if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
2241 1.1 skrll || tls_type == GOT_TLS_IE
2242 1.3 christos || h->type == STT_GNU_IFUNC)
2243 1.14 christos htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2244 1.14 christos else if (tls_type == GOT_TLS_GD)
2245 1.14 christos htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
2246 1.14 christos else if ((WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)
2247 1.14 christos /* Even if the symbol isn't dynamic, we may generate a
2248 1.14 christos reloc for the dynamic linker in PIC mode. */
2249 1.14 christos || (h->dynindx == -1
2250 1.14 christos && !h->forced_local
2251 1.14 christos && h->root.type != bfd_link_hash_undefweak
2252 1.14 christos && bfd_link_pic (info)))
2253 1.14 christos /* No dynamic relocations are needed against resolved
2254 1.14 christos undefined weak symbols in an executable. */
2255 1.3 christos && !(h->root.type == bfd_link_hash_undefweak
2256 1.1 skrll && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2257 1.1 skrll || resolved_to_zero)))
2258 1.1 skrll htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2259 1.1 skrll }
2260 1.1 skrll else
2261 1.1 skrll h->got.offset = (bfd_vma) -1;
2262 1.1 skrll
2263 1.1 skrll if (eh->dyn_relocs == NULL)
2264 1.1 skrll return TRUE;
2265 1.1 skrll
2266 1.1 skrll /* In the shared -Bsymbolic case, discard space allocated for
2267 1.1 skrll dynamic pc-relative relocs against symbols which turn out to be
2268 1.1 skrll defined in regular objects. For the normal shared case, discard
2269 1.7 christos space for pc-relative relocs that have become local due to symbol
2270 1.1 skrll visibility changes. */
2271 1.3 christos
2272 1.1 skrll if (bfd_link_pic (info))
2273 1.13 christos {
2274 1.1 skrll if (SYMBOL_CALLS_LOCAL (info, h))
2275 1.1 skrll {
2276 1.1 skrll struct elf_dyn_relocs **pp;
2277 1.1 skrll
2278 1.1 skrll for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2279 1.1 skrll {
2280 1.1 skrll p->count -= p->pc_count;
2281 1.1 skrll p->pc_count = 0;
2282 1.1 skrll if (p->count == 0)
2283 1.1 skrll *pp = p->next;
2284 1.1 skrll else
2285 1.1 skrll pp = &p->next;
2286 1.1 skrll }
2287 1.1 skrll }
2288 1.13 christos
2289 1.1 skrll if (htab->is_vxworks)
2290 1.1 skrll {
2291 1.1 skrll struct elf_dyn_relocs **pp;
2292 1.1 skrll
2293 1.1 skrll for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2294 1.1 skrll {
2295 1.1 skrll if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2296 1.1 skrll *pp = p->next;
2297 1.1 skrll else
2298 1.1 skrll pp = &p->next;
2299 1.1 skrll }
2300 1.13 christos }
2301 1.1 skrll
2302 1.1 skrll /* Also discard relocs on undefined weak syms with non-default
2303 1.1 skrll visibility or in PIE. */
2304 1.13 christos if (eh->dyn_relocs != NULL
2305 1.13 christos && h->root.type == bfd_link_hash_undefweak)
2306 1.13 christos {
2307 1.13 christos /* An undefined weak symbol is never
2308 1.13 christos bound locally in a shared library. */
2309 1.13 christos
2310 1.13 christos if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2311 1.13 christos || resolved_to_zero)
2312 1.13 christos {
2313 1.13 christos if (h->non_got_ref)
2314 1.13 christos {
2315 1.13 christos /* Keep dynamic non-GOT/non-PLT relocation so that we
2316 1.13 christos can branch to 0 without PLT. */
2317 1.13 christos struct elf_dyn_relocs **pp;
2318 1.13 christos
2319 1.13 christos for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2320 1.13 christos if (p->pc_count == 0)
2321 1.13 christos *pp = p->next;
2322 1.13 christos else
2323 1.13 christos {
2324 1.13 christos /* Remove other relocations. */
2325 1.13 christos p->count = p->pc_count;
2326 1.13 christos pp = &p->next;
2327 1.13 christos }
2328 1.13 christos
2329 1.13 christos if (eh->dyn_relocs != NULL)
2330 1.13 christos {
2331 1.13 christos /* Make sure undefined weak symbols are output
2332 1.13 christos as dynamic symbols in PIEs for dynamic non-GOT
2333 1.13 christos non-PLT reloations. */
2334 1.13 christos if (! bfd_elf_link_record_dynamic_symbol (info, h))
2335 1.13 christos return FALSE;
2336 1.13 christos }
2337 1.13 christos }
2338 1.1 skrll else
2339 1.1 skrll eh->dyn_relocs = NULL;
2340 1.1 skrll }
2341 1.1 skrll
2342 1.1 skrll /* Make sure undefined weak symbols are output as a dynamic
2343 1.1 skrll symbol in PIEs. */
2344 1.1 skrll else if (h->dynindx == -1
2345 1.1 skrll && !h->forced_local)
2346 1.1 skrll {
2347 1.1 skrll if (! bfd_elf_link_record_dynamic_symbol (info, h))
2348 1.1 skrll return FALSE;
2349 1.1 skrll }
2350 1.1 skrll }
2351 1.1 skrll }
2352 1.1 skrll else
2353 1.1 skrll {
2354 1.1 skrll /* For the non-shared case, discard space for relocs against
2355 1.13 christos symbols which turn out to need copy relocs or are not
2356 1.13 christos dynamic. */
2357 1.13 christos
2358 1.1 skrll if ((!h->non_got_ref
2359 1.1 skrll || (h->root.type == bfd_link_hash_undefweak
2360 1.1 skrll && !resolved_to_zero))
2361 1.1 skrll && ((h->def_dynamic
2362 1.1 skrll && !h->def_regular)
2363 1.1 skrll || (htab->elf.dynamic_sections_created
2364 1.14 christos && (h->root.type == bfd_link_hash_undefweak
2365 1.14 christos || h->root.type == bfd_link_hash_undefined))))
2366 1.13 christos {
2367 1.14 christos /* Undefined weak syms won't yet be marked as dynamic. */
2368 1.14 christos if (h->root.type == bfd_link_hash_undefweak
2369 1.1 skrll && !resolved_to_zero
2370 1.1 skrll && h->dynindx == -1
2371 1.1 skrll && !h->forced_local)
2372 1.1 skrll {
2373 1.1 skrll if (! bfd_elf_link_record_dynamic_symbol (info, h))
2374 1.1 skrll return FALSE;
2375 1.1 skrll }
2376 1.1 skrll
2377 1.1 skrll /* If that succeeded, we know we'll be keeping all the
2378 1.1 skrll relocs. */
2379 1.1 skrll if (h->dynindx != -1)
2380 1.1 skrll goto keep;
2381 1.1 skrll }
2382 1.1 skrll
2383 1.1 skrll eh->dyn_relocs = NULL;
2384 1.1 skrll
2385 1.1 skrll keep: ;
2386 1.1 skrll }
2387 1.1 skrll
2388 1.1 skrll /* Finally, allocate space. */
2389 1.1 skrll for (p = eh->dyn_relocs; p != NULL; p = p->next)
2390 1.1 skrll {
2391 1.1 skrll asection *sreloc = elf_section_data (p->sec)->sreloc;
2392 1.1 skrll sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2393 1.1 skrll }
2394 1.1 skrll
2395 1.3 christos return TRUE;
2396 1.3 christos }
2397 1.3 christos
2398 1.3 christos /* Allocate space in .plt, .got and associated reloc sections for
2399 1.3 christos local dynamic relocs. */
2400 1.3 christos
2401 1.3 christos static bfd_boolean
2402 1.3 christos allocate_local_dynrelocs (void **slot, void *inf)
2403 1.3 christos {
2404 1.3 christos struct elf_link_hash_entry *h
2405 1.3 christos = (struct elf_link_hash_entry *) *slot;
2406 1.3 christos
2407 1.3 christos if (h->type != STT_GNU_IFUNC
2408 1.3 christos || !h->def_regular
2409 1.3 christos || !h->ref_regular
2410 1.3 christos || !h->forced_local
2411 1.3 christos || h->root.type != bfd_link_hash_defined)
2412 1.3 christos abort ();
2413 1.3 christos
2414 1.13 christos return allocate_dynrelocs (h, inf);
2415 1.13 christos }
2416 1.1 skrll
2417 1.1 skrll /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2418 1.13 christos read-only sections. */
2419 1.1 skrll
2420 1.13 christos static bfd_boolean
2421 1.13 christos maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
2422 1.13 christos {
2423 1.13 christos asection *sec;
2424 1.1 skrll
2425 1.13 christos if (h->root.type == bfd_link_hash_indirect)
2426 1.13 christos return TRUE;
2427 1.1 skrll
2428 1.13 christos sec = readonly_dynrelocs (h);
2429 1.1 skrll if (sec != NULL)
2430 1.13 christos {
2431 1.13 christos struct bfd_link_info *info = (struct bfd_link_info *) info_p;
2432 1.14 christos
2433 1.13 christos info->flags |= DF_TEXTREL;
2434 1.1 skrll info->callbacks->minfo
2435 1.13 christos (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
2436 1.13 christos sec->owner, h->root.root.string, sec);
2437 1.1 skrll
2438 1.1 skrll /* Not an error, just cut short the traversal. */
2439 1.1 skrll return FALSE;
2440 1.1 skrll }
2441 1.1 skrll return TRUE;
2442 1.1 skrll }
2443 1.1 skrll
2444 1.1 skrll /* Return true if the dynamic symbol for a given section should be
2445 1.1 skrll omitted when creating a shared library. */
2446 1.1 skrll
2447 1.1 skrll bfd_boolean
2448 1.1 skrll _bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2449 1.1 skrll struct bfd_link_info *info,
2450 1.1 skrll asection *p)
2451 1.1 skrll {
2452 1.1 skrll /* We keep the .got section symbol so that explicit relocations
2453 1.1 skrll against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2454 1.1 skrll can be turned into relocations against the .got symbol. */
2455 1.14 christos if (strcmp (p->name, ".got") == 0)
2456 1.1 skrll return FALSE;
2457 1.1 skrll
2458 1.1 skrll return _bfd_elf_omit_section_dynsym_default (output_bfd, info, p);
2459 1.1 skrll }
2460 1.1 skrll
2461 1.1 skrll /* Set the sizes of the dynamic sections. */
2462 1.1 skrll
2463 1.1 skrll bfd_boolean
2464 1.1 skrll _bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
2465 1.1 skrll struct bfd_link_info *info)
2466 1.1 skrll {
2467 1.1 skrll struct _bfd_sparc_elf_link_hash_table *htab;
2468 1.1 skrll bfd *dynobj;
2469 1.1 skrll asection *s;
2470 1.3 christos bfd *ibfd;
2471 1.1 skrll
2472 1.1 skrll htab = _bfd_sparc_elf_hash_table (info);
2473 1.1 skrll BFD_ASSERT (htab != NULL);
2474 1.1 skrll dynobj = htab->elf.dynobj;
2475 1.1 skrll BFD_ASSERT (dynobj != NULL);
2476 1.1 skrll
2477 1.7 christos if (elf_hash_table (info)->dynamic_sections_created)
2478 1.1 skrll {
2479 1.6 christos /* Set the contents of the .interp section to the interpreter. */
2480 1.1 skrll if (bfd_link_executable (info) && !info->nointerp)
2481 1.1 skrll {
2482 1.1 skrll s = bfd_get_linker_section (dynobj, ".interp");
2483 1.13 christos BFD_ASSERT (s != NULL);
2484 1.1 skrll s->size = htab->dynamic_interpreter_size;
2485 1.1 skrll s->contents = (unsigned char *) htab->dynamic_interpreter;
2486 1.1 skrll htab->interp = s;
2487 1.1 skrll }
2488 1.1 skrll }
2489 1.7 christos
2490 1.1 skrll /* Set up .got offsets for local syms, and space for local dynamic
2491 1.1 skrll relocs. */
2492 1.1 skrll for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2493 1.1 skrll {
2494 1.1 skrll bfd_signed_vma *local_got;
2495 1.1 skrll bfd_signed_vma *end_local_got;
2496 1.1 skrll char *local_tls_type;
2497 1.1 skrll bfd_size_type locsymcount;
2498 1.1 skrll Elf_Internal_Shdr *symtab_hdr;
2499 1.1 skrll asection *srel;
2500 1.1 skrll
2501 1.1 skrll if (! is_sparc_elf (ibfd))
2502 1.1 skrll continue;
2503 1.13 christos
2504 1.1 skrll for (s = ibfd->sections; s != NULL; s = s->next)
2505 1.1 skrll {
2506 1.1 skrll struct elf_dyn_relocs *p;
2507 1.1 skrll
2508 1.1 skrll for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2509 1.1 skrll {
2510 1.1 skrll if (!bfd_is_abs_section (p->sec)
2511 1.1 skrll && bfd_is_abs_section (p->sec->output_section))
2512 1.1 skrll {
2513 1.1 skrll /* Input section has been discarded, either because
2514 1.1 skrll it is a copy of a linkonce section or due to
2515 1.1 skrll linker script /DISCARD/, so we'll be discarding
2516 1.1 skrll the relocs too. */
2517 1.1 skrll }
2518 1.1 skrll else if (htab->is_vxworks
2519 1.1 skrll && strcmp (p->sec->output_section->name,
2520 1.1 skrll ".tls_vars") == 0)
2521 1.1 skrll {
2522 1.1 skrll /* Relocations in vxworks .tls_vars sections are
2523 1.1 skrll handled specially by the loader. */
2524 1.1 skrll }
2525 1.3 christos else if (p->count != 0)
2526 1.3 christos {
2527 1.1 skrll srel = elf_section_data (p->sec)->sreloc;
2528 1.1 skrll if (!htab->elf.dynamic_sections_created)
2529 1.10 christos srel = htab->elf.irelplt;
2530 1.10 christos srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2531 1.14 christos if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2532 1.13 christos {
2533 1.10 christos info->flags |= DF_TEXTREL;
2534 1.1 skrll info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
2535 1.1 skrll p->sec->owner, p->sec);
2536 1.1 skrll }
2537 1.1 skrll }
2538 1.1 skrll }
2539 1.1 skrll }
2540 1.1 skrll
2541 1.1 skrll local_got = elf_local_got_refcounts (ibfd);
2542 1.1 skrll if (!local_got)
2543 1.1 skrll continue;
2544 1.1 skrll
2545 1.1 skrll symtab_hdr = &elf_symtab_hdr (ibfd);
2546 1.3 christos locsymcount = symtab_hdr->sh_info;
2547 1.3 christos end_local_got = local_got + locsymcount;
2548 1.1 skrll local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
2549 1.1 skrll s = htab->elf.sgot;
2550 1.1 skrll srel = htab->elf.srelgot;
2551 1.1 skrll for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2552 1.1 skrll {
2553 1.1 skrll if (*local_got > 0)
2554 1.1 skrll {
2555 1.1 skrll *local_got = s->size;
2556 1.7 christos s->size += SPARC_ELF_WORD_BYTES (htab);
2557 1.1 skrll if (*local_tls_type == GOT_TLS_GD)
2558 1.1 skrll s->size += SPARC_ELF_WORD_BYTES (htab);
2559 1.1 skrll if (bfd_link_pic (info)
2560 1.1 skrll || *local_tls_type == GOT_TLS_GD
2561 1.1 skrll || *local_tls_type == GOT_TLS_IE)
2562 1.1 skrll srel->size += SPARC_ELF_RELA_BYTES (htab);
2563 1.1 skrll }
2564 1.1 skrll else
2565 1.1 skrll *local_got = (bfd_vma) -1;
2566 1.1 skrll }
2567 1.1 skrll }
2568 1.1 skrll
2569 1.1 skrll if (htab->tls_ldm_got.refcount > 0)
2570 1.3 christos {
2571 1.3 christos /* Allocate 2 got entries and 1 dynamic reloc for
2572 1.3 christos R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
2573 1.1 skrll htab->tls_ldm_got.offset = htab->elf.sgot->size;
2574 1.1 skrll htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2575 1.1 skrll htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2576 1.1 skrll }
2577 1.1 skrll else
2578 1.1 skrll htab->tls_ldm_got.offset = -1;
2579 1.6 christos
2580 1.1 skrll /* Allocate global sym .plt and .got entries, and space for global
2581 1.3 christos sym dynamic relocs. */
2582 1.3 christos elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2583 1.3 christos
2584 1.1 skrll /* Allocate .plt and .got entries, and space for local symbols. */
2585 1.1 skrll htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2586 1.1 skrll
2587 1.1 skrll if (! ABI_64_P (output_bfd)
2588 1.1 skrll && !htab->is_vxworks
2589 1.3 christos && elf_hash_table (info)->dynamic_sections_created)
2590 1.3 christos {
2591 1.1 skrll /* Make space for the trailing nop in .plt. */
2592 1.1 skrll if (htab->elf.splt->size > 0)
2593 1.1 skrll htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
2594 1.1 skrll
2595 1.1 skrll /* If the .got section is more than 0x1000 bytes, we add
2596 1.1 skrll 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
2597 1.3 christos bit relocations have a greater chance of working.
2598 1.1 skrll
2599 1.1 skrll FIXME: Make this optimization work for 64-bit too. */
2600 1.1 skrll if (htab->elf.sgot->size >= 0x1000
2601 1.1 skrll && elf_hash_table (info)->hgot->root.u.def.value == 0)
2602 1.1 skrll elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2603 1.1 skrll }
2604 1.1 skrll
2605 1.1 skrll /* The check_relocs and adjust_dynamic_symbol entry points have
2606 1.1 skrll determined the sizes of the various dynamic sections. Allocate
2607 1.1 skrll memory for them. */
2608 1.1 skrll for (s = dynobj->sections; s != NULL; s = s->next)
2609 1.1 skrll {
2610 1.3 christos if ((s->flags & SEC_LINKER_CREATED) == 0)
2611 1.3 christos continue;
2612 1.13 christos
2613 1.13 christos if (s == htab->elf.splt
2614 1.3 christos || s == htab->elf.sgot
2615 1.3 christos || s == htab->elf.sdynbss
2616 1.1 skrll || s == htab->elf.sdynrelro
2617 1.1 skrll || s == htab->elf.iplt
2618 1.1 skrll || s == htab->elf.sgotplt)
2619 1.1 skrll {
2620 1.1 skrll /* Strip this section if we don't need it; see the
2621 1.1 skrll comment below. */
2622 1.1 skrll }
2623 1.1 skrll else if (CONST_STRNEQ (s->name, ".rela"))
2624 1.1 skrll {
2625 1.1 skrll if (s->size != 0)
2626 1.1 skrll {
2627 1.1 skrll /* We use the reloc_count field as a counter if we need
2628 1.1 skrll to copy relocs into the output file. */
2629 1.1 skrll s->reloc_count = 0;
2630 1.1 skrll }
2631 1.1 skrll }
2632 1.1 skrll else
2633 1.1 skrll {
2634 1.1 skrll /* It's not one of our sections. */
2635 1.1 skrll continue;
2636 1.1 skrll }
2637 1.1 skrll
2638 1.1 skrll if (s->size == 0)
2639 1.1 skrll {
2640 1.1 skrll /* If we don't need this section, strip it from the
2641 1.1 skrll output file. This is mostly to handle .rela.bss and
2642 1.1 skrll .rela.plt. We must create both sections in
2643 1.1 skrll create_dynamic_sections, because they must be created
2644 1.1 skrll before the linker maps input sections to output
2645 1.1 skrll sections. The linker does that before
2646 1.1 skrll adjust_dynamic_symbol is called, and it is that
2647 1.1 skrll function which decides whether anything needs to go
2648 1.1 skrll into these sections. */
2649 1.1 skrll s->flags |= SEC_EXCLUDE;
2650 1.1 skrll continue;
2651 1.1 skrll }
2652 1.1 skrll
2653 1.1 skrll if ((s->flags & SEC_HAS_CONTENTS) == 0)
2654 1.1 skrll continue;
2655 1.1 skrll
2656 1.1 skrll /* Allocate memory for the section contents. Zero the memory
2657 1.1 skrll for the benefit of .rela.plt, which has 4 unused entries
2658 1.1 skrll at the beginning, and we don't want garbage. */
2659 1.1 skrll s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2660 1.1 skrll if (s->contents == NULL)
2661 1.1 skrll return FALSE;
2662 1.1 skrll }
2663 1.1 skrll
2664 1.1 skrll if (elf_hash_table (info)->dynamic_sections_created)
2665 1.1 skrll {
2666 1.1 skrll /* Add some entries to the .dynamic section. We fill in the
2667 1.1 skrll values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2668 1.1 skrll must add the entries now so that we get the correct size for
2669 1.1 skrll the .dynamic section. The DT_DEBUG entry is filled in by the
2670 1.1 skrll dynamic linker and used by the debugger. */
2671 1.7 christos #define add_dynamic_entry(TAG, VAL) \
2672 1.1 skrll _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2673 1.1 skrll
2674 1.1 skrll if (bfd_link_executable (info))
2675 1.1 skrll {
2676 1.1 skrll if (!add_dynamic_entry (DT_DEBUG, 0))
2677 1.3 christos return FALSE;
2678 1.1 skrll }
2679 1.1 skrll
2680 1.1 skrll if (htab->elf.srelplt->size != 0)
2681 1.1 skrll {
2682 1.1 skrll if (!add_dynamic_entry (DT_PLTGOT, 0)
2683 1.1 skrll || !add_dynamic_entry (DT_PLTRELSZ, 0)
2684 1.1 skrll || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2685 1.1 skrll || !add_dynamic_entry (DT_JMPREL, 0))
2686 1.1 skrll return FALSE;
2687 1.1 skrll }
2688 1.1 skrll
2689 1.1 skrll if (!add_dynamic_entry (DT_RELA, 0)
2690 1.1 skrll || !add_dynamic_entry (DT_RELASZ, 0)
2691 1.1 skrll || !add_dynamic_entry (DT_RELAENT,
2692 1.1 skrll SPARC_ELF_RELA_BYTES (htab)))
2693 1.1 skrll return FALSE;
2694 1.1 skrll
2695 1.13 christos /* If any dynamic relocs apply to a read-only section,
2696 1.1 skrll then we need a DT_TEXTREL entry. */
2697 1.1 skrll if ((info->flags & DF_TEXTREL) == 0)
2698 1.1 skrll elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
2699 1.1 skrll
2700 1.1 skrll if (info->flags & DF_TEXTREL)
2701 1.1 skrll {
2702 1.1 skrll if (!add_dynamic_entry (DT_TEXTREL, 0))
2703 1.1 skrll return FALSE;
2704 1.1 skrll }
2705 1.1 skrll
2706 1.1 skrll if (ABI_64_P (output_bfd))
2707 1.1 skrll {
2708 1.1 skrll int reg;
2709 1.1 skrll struct _bfd_sparc_elf_app_reg * app_regs;
2710 1.1 skrll struct elf_strtab_hash *dynstr;
2711 1.1 skrll struct elf_link_hash_table *eht = elf_hash_table (info);
2712 1.1 skrll
2713 1.1 skrll /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2714 1.1 skrll entries if needed. */
2715 1.1 skrll app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2716 1.1 skrll dynstr = eht->dynstr;
2717 1.1 skrll
2718 1.1 skrll for (reg = 0; reg < 4; reg++)
2719 1.1 skrll if (app_regs [reg].name != NULL)
2720 1.1 skrll {
2721 1.1 skrll struct elf_link_local_dynamic_entry *entry, *e;
2722 1.1 skrll
2723 1.1 skrll if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2724 1.1 skrll return FALSE;
2725 1.1 skrll
2726 1.1 skrll entry = (struct elf_link_local_dynamic_entry *)
2727 1.1 skrll bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2728 1.1 skrll if (entry == NULL)
2729 1.1 skrll return FALSE;
2730 1.1 skrll
2731 1.1 skrll /* We cheat here a little bit: the symbol will not be local, so we
2732 1.1 skrll put it at the end of the dynlocal linked list. We will fix it
2733 1.1 skrll later on, as we have to fix other fields anyway. */
2734 1.1 skrll entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2735 1.1 skrll entry->isym.st_size = 0;
2736 1.1 skrll if (*app_regs [reg].name != '\0')
2737 1.1 skrll entry->isym.st_name
2738 1.1 skrll = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
2739 1.1 skrll else
2740 1.1 skrll entry->isym.st_name = 0;
2741 1.1 skrll entry->isym.st_other = 0;
2742 1.6 christos entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2743 1.1 skrll STT_REGISTER);
2744 1.1 skrll entry->isym.st_shndx = app_regs [reg].shndx;
2745 1.1 skrll entry->isym.st_target_internal = 0;
2746 1.1 skrll entry->next = NULL;
2747 1.1 skrll entry->input_bfd = output_bfd;
2748 1.1 skrll entry->input_indx = -1;
2749 1.1 skrll
2750 1.1 skrll if (eht->dynlocal == NULL)
2751 1.1 skrll eht->dynlocal = entry;
2752 1.1 skrll else
2753 1.1 skrll {
2754 1.1 skrll for (e = eht->dynlocal; e->next; e = e->next)
2755 1.1 skrll ;
2756 1.1 skrll e->next = entry;
2757 1.1 skrll }
2758 1.1 skrll eht->dynsymcount++;
2759 1.1 skrll }
2760 1.1 skrll }
2761 1.1 skrll if (htab->is_vxworks
2762 1.1 skrll && !elf_vxworks_add_dynamic_entries (output_bfd, info))
2763 1.1 skrll return FALSE;
2764 1.1 skrll }
2765 1.1 skrll #undef add_dynamic_entry
2766 1.1 skrll
2767 1.1 skrll return TRUE;
2768 1.1 skrll }
2769 1.1 skrll
2770 1.1 skrll bfd_boolean
2772 1.1 skrll _bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2773 1.1 skrll {
2774 1.1 skrll if (!sec->used_by_bfd)
2775 1.1 skrll {
2776 1.1 skrll struct _bfd_sparc_elf_section_data *sdata;
2777 1.1 skrll bfd_size_type amt = sizeof (*sdata);
2778 1.1 skrll
2779 1.1 skrll sdata = bfd_zalloc (abfd, amt);
2780 1.1 skrll if (sdata == NULL)
2781 1.1 skrll return FALSE;
2782 1.1 skrll sec->used_by_bfd = sdata;
2783 1.1 skrll }
2784 1.1 skrll
2785 1.1 skrll return _bfd_elf_new_section_hook (abfd, sec);
2786 1.1 skrll }
2787 1.1 skrll
2788 1.1 skrll bfd_boolean
2789 1.1 skrll _bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2790 1.7 christos struct bfd_section *section,
2791 1.3 christos struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2792 1.3 christos bfd_boolean *again)
2793 1.3 christos {
2794 1.1 skrll if (bfd_link_relocatable (link_info))
2795 1.1 skrll (*link_info->callbacks->einfo)
2796 1.1 skrll (_("%P%F: --relax and -r may not be used together\n"));
2797 1.1 skrll
2798 1.1 skrll *again = FALSE;
2799 1.1 skrll sec_do_relax (section) = 1;
2800 1.1 skrll return TRUE;
2801 1.1 skrll }
2802 1.1 skrll
2803 1.1 skrll /* Return the base VMA address which should be subtracted from real addresses
2805 1.1 skrll when resolving @dtpoff relocation.
2806 1.1 skrll This is PT_TLS segment p_vaddr. */
2807 1.1 skrll
2808 1.1 skrll static bfd_vma
2809 1.1 skrll dtpoff_base (struct bfd_link_info *info)
2810 1.1 skrll {
2811 1.1 skrll /* If tls_sec is NULL, we should have signalled an error already. */
2812 1.1 skrll if (elf_hash_table (info)->tls_sec == NULL)
2813 1.1 skrll return 0;
2814 1.1 skrll return elf_hash_table (info)->tls_sec->vma;
2815 1.1 skrll }
2816 1.1 skrll
2817 1.1 skrll /* Return the relocation value for @tpoff relocation
2818 1.1 skrll if STT_TLS virtual address is ADDRESS. */
2819 1.3 christos
2820 1.3 christos static bfd_vma
2821 1.1 skrll tpoff (struct bfd_link_info *info, bfd_vma address)
2822 1.1 skrll {
2823 1.1 skrll struct elf_link_hash_table *htab = elf_hash_table (info);
2824 1.1 skrll const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
2825 1.3 christos bfd_vma static_tls_size;
2826 1.3 christos
2827 1.3 christos /* If tls_sec is NULL, we should have signalled an error already. */
2828 1.3 christos if (htab->tls_sec == NULL)
2829 1.3 christos return 0;
2830 1.3 christos
2831 1.3 christos /* Consider special static TLS alignment requirements. */
2832 1.3 christos static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
2833 1.3 christos return address - static_tls_size - htab->tls_sec->vma;
2834 1.3 christos }
2835 1.3 christos
2836 1.3 christos /* Return the relocation value for a %gdop relocation. */
2837 1.3 christos
2838 1.3 christos static bfd_vma
2839 1.3 christos gdopoff (struct bfd_link_info *info, bfd_vma address)
2840 1.3 christos {
2841 1.3 christos struct elf_link_hash_table *htab = elf_hash_table (info);
2842 1.3 christos bfd_vma got_base;
2843 1.3 christos
2844 1.1 skrll got_base = (htab->hgot->root.u.def.value
2845 1.1 skrll + htab->hgot->root.u.def.section->output_offset
2846 1.13 christos + htab->hgot->root.u.def.section->output_section->vma);
2847 1.13 christos
2848 1.13 christos return address - got_base;
2849 1.13 christos }
2850 1.13 christos
2851 1.13 christos /* Return whether H is local and its ADDRESS is within 4G of
2852 1.13 christos _GLOBAL_OFFSET_TABLE_ and thus the offset may be calculated by a
2853 1.13 christos sethi, xor sequence. */
2854 1.13 christos
2855 1.13 christos static bfd_boolean
2856 1.13 christos gdop_relative_offset_ok (struct bfd_link_info *info,
2857 1.13 christos struct elf_link_hash_entry *h,
2858 1.13 christos bfd_vma address ATTRIBUTE_UNUSED)
2859 1.13 christos {
2860 1.13 christos if (!SYMBOL_REFERENCES_LOCAL (info, h))
2861 1.13 christos return FALSE;
2862 1.13 christos /* If H is undefined, ADDRESS will be zero. We can't allow a
2863 1.13 christos relative offset to "zero" when producing PIEs or shared libs.
2864 1.13 christos Note that to get here with an undefined symbol it must also be
2865 1.13 christos hidden or internal visibility. */
2866 1.13 christos if (bfd_link_pic (info)
2867 1.13 christos && h != NULL
2868 1.13 christos && (h->root.type == bfd_link_hash_undefweak
2869 1.13 christos || h->root.type == bfd_link_hash_undefined))
2870 1.13 christos return FALSE;
2871 1.13 christos #ifdef BFD64
2872 1.13 christos return gdopoff (info, address) + ((bfd_vma) 1 << 32) < (bfd_vma) 2 << 32;
2873 1.1 skrll #else
2874 1.1 skrll return TRUE;
2875 1.1 skrll #endif
2876 1.1 skrll }
2877 1.1 skrll
2878 1.1 skrll /* Relocate a SPARC ELF section. */
2879 1.1 skrll
2880 1.1 skrll bfd_boolean
2881 1.1 skrll _bfd_sparc_elf_relocate_section (bfd *output_bfd,
2882 1.1 skrll struct bfd_link_info *info,
2883 1.1 skrll bfd *input_bfd,
2884 1.1 skrll asection *input_section,
2885 1.1 skrll bfd_byte *contents,
2886 1.1 skrll Elf_Internal_Rela *relocs,
2887 1.1 skrll Elf_Internal_Sym *local_syms,
2888 1.1 skrll asection **local_sections)
2889 1.1 skrll {
2890 1.1 skrll struct _bfd_sparc_elf_link_hash_table *htab;
2891 1.1 skrll Elf_Internal_Shdr *symtab_hdr;
2892 1.1 skrll struct elf_link_hash_entry **sym_hashes;
2893 1.1 skrll bfd_vma *local_got_offsets;
2894 1.1 skrll bfd_vma got_base;
2895 1.1 skrll asection *sreloc;
2896 1.1 skrll Elf_Internal_Rela *rel;
2897 1.3 christos Elf_Internal_Rela *relend;
2898 1.1 skrll int num_relocs;
2899 1.1 skrll bfd_boolean is_vxworks_tls;
2900 1.1 skrll
2901 1.1 skrll htab = _bfd_sparc_elf_hash_table (info);
2902 1.1 skrll BFD_ASSERT (htab != NULL);
2903 1.1 skrll symtab_hdr = &elf_symtab_hdr (input_bfd);
2904 1.1 skrll sym_hashes = elf_sym_hashes (input_bfd);
2905 1.1 skrll local_got_offsets = elf_local_got_offsets (input_bfd);
2906 1.1 skrll
2907 1.1 skrll if (elf_hash_table (info)->hgot == NULL)
2908 1.1 skrll got_base = 0;
2909 1.1 skrll else
2910 1.7 christos got_base = elf_hash_table (info)->hgot->root.u.def.value;
2911 1.1 skrll
2912 1.1 skrll sreloc = elf_section_data (input_section)->sreloc;
2913 1.1 skrll /* We have to handle relocations in vxworks .tls_vars sections
2914 1.1 skrll specially, because the dynamic loader is 'weird'. */
2915 1.1 skrll is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
2916 1.3 christos && !strcmp (input_section->output_section->name,
2917 1.1 skrll ".tls_vars"));
2918 1.1 skrll
2919 1.1 skrll rel = relocs;
2920 1.1 skrll if (ABI_64_P (output_bfd))
2921 1.1 skrll num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section));
2922 1.1 skrll else
2923 1.1 skrll num_relocs = input_section->reloc_count;
2924 1.1 skrll relend = relocs + num_relocs;
2925 1.1 skrll for (; rel < relend; rel++)
2926 1.13 christos {
2927 1.1 skrll int r_type, tls_type;
2928 1.1 skrll reloc_howto_type *howto;
2929 1.1 skrll unsigned long r_symndx;
2930 1.1 skrll struct elf_link_hash_entry *h;
2931 1.1 skrll struct _bfd_sparc_elf_link_hash_entry *eh;
2932 1.1 skrll Elf_Internal_Sym *sym;
2933 1.13 christos asection *sec;
2934 1.13 christos bfd_vma relocation, off;
2935 1.1 skrll bfd_reloc_status_type r;
2936 1.1 skrll bfd_boolean is_plt = FALSE;
2937 1.1 skrll bfd_boolean unresolved_reloc;
2938 1.1 skrll bfd_boolean resolved_to_zero;
2939 1.1 skrll bfd_boolean relative_reloc;
2940 1.1 skrll
2941 1.1 skrll r_type = SPARC_ELF_R_TYPE (rel->r_info);
2942 1.1 skrll if (r_type == R_SPARC_GNU_VTINHERIT
2943 1.1 skrll || r_type == R_SPARC_GNU_VTENTRY)
2944 1.1 skrll continue;
2945 1.1 skrll
2946 1.14 christos if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
2947 1.1 skrll {
2948 1.1 skrll bfd_set_error (bfd_error_bad_value);
2949 1.1 skrll return FALSE;
2950 1.1 skrll }
2951 1.1 skrll
2952 1.1 skrll howto = _bfd_sparc_elf_howto_table + r_type;
2953 1.1 skrll r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
2954 1.1 skrll h = NULL;
2955 1.1 skrll sym = NULL;
2956 1.1 skrll sec = NULL;
2957 1.1 skrll unresolved_reloc = FALSE;
2958 1.3 christos if (r_symndx < symtab_hdr->sh_info)
2959 1.7 christos {
2960 1.3 christos sym = local_syms + r_symndx;
2961 1.3 christos sec = local_sections[r_symndx];
2962 1.3 christos relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2963 1.3 christos
2964 1.3 christos if (!bfd_link_relocatable (info)
2965 1.3 christos && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
2966 1.3 christos {
2967 1.3 christos /* Relocate against local STT_GNU_IFUNC symbol. */
2968 1.7 christos h = elf_sparc_get_local_sym_hash (htab, input_bfd,
2969 1.3 christos rel, FALSE);
2970 1.3 christos if (h == NULL)
2971 1.3 christos abort ();
2972 1.1 skrll
2973 1.1 skrll /* Set STT_GNU_IFUNC symbol value. */
2974 1.1 skrll h->root.u.def.value = sym->st_value;
2975 1.7 christos h->root.u.def.section = sec;
2976 1.1 skrll }
2977 1.1 skrll }
2978 1.1 skrll else
2979 1.1 skrll {
2980 1.7 christos bfd_boolean warned, ignored;
2981 1.1 skrll
2982 1.1 skrll RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2983 1.1 skrll r_symndx, symtab_hdr, sym_hashes,
2984 1.1 skrll h, sec, relocation,
2985 1.1 skrll unresolved_reloc, warned, ignored);
2986 1.1 skrll if (warned)
2987 1.1 skrll {
2988 1.1 skrll /* To avoid generating warning messages about truncated
2989 1.1 skrll relocations, set the relocation's address to be the same as
2990 1.1 skrll the start of this section. */
2991 1.1 skrll if (input_section->output_section != NULL)
2992 1.1 skrll relocation = input_section->output_section->vma;
2993 1.6 christos else
2994 1.3 christos relocation = 0;
2995 1.6 christos }
2996 1.1 skrll }
2997 1.7 christos
2998 1.1 skrll if (sec != NULL && discarded_section (sec))
2999 1.1 skrll RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3000 1.3 christos rel, 1, relend, howto, 0, contents);
3001 1.3 christos
3002 1.3 christos if (bfd_link_relocatable (info))
3003 1.3 christos continue;
3004 1.3 christos
3005 1.3 christos if (h != NULL
3006 1.3 christos && h->type == STT_GNU_IFUNC
3007 1.3 christos && h->def_regular)
3008 1.3 christos {
3009 1.14 christos asection *plt_sec;
3010 1.14 christos const char *name;
3011 1.14 christos
3012 1.14 christos if ((input_section->flags & SEC_ALLOC) == 0
3013 1.14 christos || h->plt.offset == (bfd_vma) -1)
3014 1.14 christos {
3015 1.14 christos /* If this is a SHT_NOTE section without SHF_ALLOC, treat
3016 1.3 christos STT_GNU_IFUNC symbol as STT_FUNC. */
3017 1.3 christos if (elf_section_type (input_section) == SHT_NOTE)
3018 1.3 christos goto skip_ifunc;
3019 1.3 christos abort ();
3020 1.3 christos }
3021 1.3 christos
3022 1.3 christos plt_sec = htab->elf.splt;
3023 1.3 christos if (! plt_sec)
3024 1.3 christos plt_sec =htab->elf.iplt;
3025 1.3 christos
3026 1.3 christos switch (r_type)
3027 1.3 christos {
3028 1.3 christos case R_SPARC_GOTDATA_OP:
3029 1.3 christos continue;
3030 1.3 christos
3031 1.3 christos case R_SPARC_GOTDATA_OP_HIX22:
3032 1.3 christos case R_SPARC_GOTDATA_OP_LOX10:
3033 1.3 christos r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3034 1.3 christos ? R_SPARC_GOT22
3035 1.3 christos : R_SPARC_GOT10);
3036 1.3 christos howto = _bfd_sparc_elf_howto_table + r_type;
3037 1.3 christos /* Fall through. */
3038 1.3 christos
3039 1.3 christos case R_SPARC_GOT10:
3040 1.3 christos case R_SPARC_GOT13:
3041 1.3 christos case R_SPARC_GOT22:
3042 1.3 christos if (htab->elf.sgot == NULL)
3043 1.3 christos abort ();
3044 1.3 christos off = h->got.offset;
3045 1.3 christos if (off == (bfd_vma) -1)
3046 1.3 christos abort();
3047 1.3 christos relocation = htab->elf.sgot->output_offset + off - got_base;
3048 1.3 christos goto do_relocation;
3049 1.3 christos
3050 1.3 christos case R_SPARC_WPLT30:
3051 1.3 christos case R_SPARC_WDISP30:
3052 1.3 christos relocation = (plt_sec->output_section->vma
3053 1.7 christos + plt_sec->output_offset + h->plt.offset);
3054 1.3 christos goto do_relocation;
3055 1.3 christos
3056 1.3 christos case R_SPARC_32:
3057 1.3 christos case R_SPARC_64:
3058 1.3 christos if (bfd_link_pic (info) && h->non_got_ref)
3059 1.3 christos {
3060 1.3 christos Elf_Internal_Rela outrel;
3061 1.3 christos bfd_vma offset;
3062 1.3 christos
3063 1.3 christos offset = _bfd_elf_section_offset (output_bfd, info,
3064 1.3 christos input_section,
3065 1.3 christos rel->r_offset);
3066 1.3 christos if (offset == (bfd_vma) -1
3067 1.3 christos || offset == (bfd_vma) -2)
3068 1.3 christos abort();
3069 1.3 christos
3070 1.3 christos outrel.r_offset = (input_section->output_section->vma
3071 1.7 christos + input_section->output_offset
3072 1.3 christos + offset);
3073 1.3 christos
3074 1.3 christos if (h->dynindx == -1
3075 1.3 christos || h->forced_local
3076 1.3 christos || bfd_link_executable (info))
3077 1.3 christos {
3078 1.3 christos outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3079 1.3 christos 0, R_SPARC_IRELATIVE);
3080 1.3 christos outrel.r_addend = relocation + rel->r_addend;
3081 1.3 christos }
3082 1.3 christos else
3083 1.3 christos {
3084 1.3 christos if (h->dynindx == -1)
3085 1.3 christos abort();
3086 1.3 christos outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3087 1.3 christos outrel.r_addend = rel->r_addend;
3088 1.3 christos }
3089 1.3 christos
3090 1.3 christos sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3091 1.3 christos continue;
3092 1.3 christos }
3093 1.3 christos
3094 1.3 christos relocation = (plt_sec->output_section->vma
3095 1.3 christos + plt_sec->output_offset + h->plt.offset);
3096 1.7 christos goto do_relocation;
3097 1.3 christos
3098 1.3 christos case R_SPARC_HI22:
3099 1.3 christos case R_SPARC_LO10:
3100 1.3 christos /* We should only see such relocs in static links. */
3101 1.3 christos if (bfd_link_pic (info))
3102 1.3 christos abort();
3103 1.3 christos relocation = (plt_sec->output_section->vma
3104 1.3 christos + plt_sec->output_offset + h->plt.offset);
3105 1.3 christos goto do_relocation;
3106 1.3 christos
3107 1.3 christos default:
3108 1.13 christos if (h->root.root.string)
3109 1.13 christos name = h->root.root.string;
3110 1.14 christos else
3111 1.3 christos name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3112 1.3 christos NULL);
3113 1.3 christos _bfd_error_handler
3114 1.3 christos /* xgettext:c-format */
3115 1.3 christos (_("%pB: relocation %s against STT_GNU_IFUNC "
3116 1.3 christos "symbol `%s' isn't handled by %s"), input_bfd,
3117 1.3 christos _bfd_sparc_elf_howto_table[r_type].name,
3118 1.3 christos name, __FUNCTION__);
3119 1.14 christos bfd_set_error (bfd_error_bad_value);
3120 1.13 christos return FALSE;
3121 1.14 christos }
3122 1.13 christos }
3123 1.1 skrll
3124 1.1 skrll skip_ifunc:
3125 1.1 skrll eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
3126 1.1 skrll resolved_to_zero = eh && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
3127 1.13 christos
3128 1.13 christos switch (r_type)
3129 1.13 christos {
3130 1.13 christos case R_SPARC_GOTDATA_OP_HIX22:
3131 1.13 christos case R_SPARC_GOTDATA_OP_LOX10:
3132 1.13 christos if (gdop_relative_offset_ok (info, h, relocation))
3133 1.13 christos {
3134 1.3 christos r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3135 1.3 christos ? R_SPARC_GOTDATA_HIX22
3136 1.3 christos : R_SPARC_GOTDATA_LOX10);
3137 1.13 christos howto = _bfd_sparc_elf_howto_table + r_type;
3138 1.3 christos }
3139 1.3 christos break;
3140 1.3 christos
3141 1.3 christos case R_SPARC_GOTDATA_OP:
3142 1.3 christos if (gdop_relative_offset_ok (info, h, relocation))
3143 1.3 christos {
3144 1.14 christos bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3145 1.14 christos
3146 1.14 christos /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
3147 1.14 christos relocation = 0x80000000 | (insn & 0x3e07c01f);
3148 1.14 christos bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3149 1.14 christos
3150 1.14 christos /* If the symbol is global but not dynamic, an .rela.* slot has
3151 1.14 christos been allocated for it in the GOT so output R_SPARC_NONE here,
3152 1.14 christos if it isn't also subject to another, old-style GOT relocation.
3153 1.14 christos See also the handling of these GOT relocations just below. */
3154 1.14 christos if (h != NULL
3155 1.14 christos && h->dynindx == -1
3156 1.14 christos && !h->forced_local
3157 1.14 christos && h->root.type != bfd_link_hash_undefweak
3158 1.14 christos && !eh->has_old_style_got_reloc
3159 1.14 christos && (h->got.offset & 1) == 0
3160 1.14 christos && bfd_link_pic (info))
3161 1.14 christos {
3162 1.14 christos asection *s = htab->elf.srelgot;
3163 1.14 christos Elf_Internal_Rela outrel;
3164 1.14 christos
3165 1.14 christos BFD_ASSERT (s != NULL);
3166 1.3 christos
3167 1.3 christos memset (&outrel, 0, sizeof outrel);
3168 1.3 christos sparc_elf_append_rela (output_bfd, s, &outrel);
3169 1.3 christos h->got.offset |= 1;
3170 1.3 christos }
3171 1.3 christos }
3172 1.3 christos continue;
3173 1.3 christos }
3174 1.3 christos
3175 1.3 christos switch (r_type)
3176 1.1 skrll {
3177 1.13 christos case R_SPARC_GOTDATA_HIX22:
3178 1.13 christos case R_SPARC_GOTDATA_LOX10:
3179 1.1 skrll relocation = gdopoff (info, relocation);
3180 1.1 skrll break;
3181 1.1 skrll
3182 1.1 skrll case R_SPARC_GOTDATA_OP_HIX22:
3183 1.1 skrll case R_SPARC_GOTDATA_OP_LOX10:
3184 1.3 christos case R_SPARC_GOT10:
3185 1.1 skrll case R_SPARC_GOT13:
3186 1.1 skrll case R_SPARC_GOT22:
3187 1.13 christos /* Relocation is to the entry for this symbol in the global
3188 1.1 skrll offset table. */
3189 1.1 skrll if (htab->elf.sgot == NULL)
3190 1.1 skrll abort ();
3191 1.1 skrll
3192 1.1 skrll relative_reloc = FALSE;
3193 1.1 skrll if (h != NULL)
3194 1.1 skrll {
3195 1.1 skrll bfd_boolean dyn;
3196 1.7 christos
3197 1.7 christos off = h->got.offset;
3198 1.7 christos BFD_ASSERT (off != (bfd_vma) -1);
3199 1.7 christos dyn = elf_hash_table (info)->dynamic_sections_created;
3200 1.3 christos
3201 1.1 skrll if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3202 1.1 skrll bfd_link_pic (info),
3203 1.1 skrll h)
3204 1.1 skrll || (bfd_link_pic (info)
3205 1.1 skrll && SYMBOL_REFERENCES_LOCAL (info, h)))
3206 1.1 skrll {
3207 1.1 skrll /* This is actually a static link, or it is a
3208 1.1 skrll -Bsymbolic link and the symbol is defined
3209 1.1 skrll locally, or the symbol was forced to be local
3210 1.1 skrll because of a version file. We must initialize
3211 1.1 skrll this entry in the global offset table. Since the
3212 1.1 skrll offset must always be a multiple of 8 for 64-bit
3213 1.1 skrll and 4 for 32-bit, we use the least significant bit
3214 1.1 skrll to record whether we have initialized it already.
3215 1.1 skrll
3216 1.1 skrll When doing a dynamic link, we create a .rela.got
3217 1.1 skrll relocation entry to initialize the value. This
3218 1.14 christos is done in the finish_dynamic_symbol routine. */
3219 1.14 christos if ((off & 1) != 0)
3220 1.13 christos off &= ~1;
3221 1.13 christos else
3222 1.13 christos {
3223 1.13 christos /* If this symbol isn't dynamic in PIC mode, treat it
3224 1.14 christos like a local symbol in PIC mode below. */
3225 1.13 christos if (h->dynindx == -1
3226 1.13 christos && !h->forced_local
3227 1.13 christos && h->root.type != bfd_link_hash_undefweak
3228 1.1 skrll && bfd_link_pic (info))
3229 1.1 skrll relative_reloc = TRUE;
3230 1.1 skrll else
3231 1.1 skrll SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3232 1.1 skrll htab->elf.sgot->contents + off);
3233 1.1 skrll h->got.offset |= 1;
3234 1.1 skrll }
3235 1.1 skrll }
3236 1.1 skrll else
3237 1.1 skrll unresolved_reloc = FALSE;
3238 1.1 skrll }
3239 1.1 skrll else
3240 1.1 skrll {
3241 1.1 skrll BFD_ASSERT (local_got_offsets != NULL
3242 1.1 skrll && local_got_offsets[r_symndx] != (bfd_vma) -1);
3243 1.1 skrll
3244 1.1 skrll off = local_got_offsets[r_symndx];
3245 1.1 skrll
3246 1.1 skrll /* The offset must always be a multiple of 8 on 64-bit and
3247 1.1 skrll 4 on 32-bit. We use the least significant bit to record
3248 1.14 christos whether we have already processed this entry. */
3249 1.14 christos if ((off & 1) != 0)
3250 1.13 christos off &= ~1;
3251 1.13 christos else
3252 1.13 christos {
3253 1.13 christos /* For a local symbol in PIC mode, we need to generate a
3254 1.13 christos R_SPARC_RELATIVE reloc for the dynamic linker. */
3255 1.13 christos if (bfd_link_pic (info))
3256 1.13 christos relative_reloc = TRUE;
3257 1.13 christos else
3258 1.1 skrll SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3259 1.13 christos htab->elf.sgot->contents + off);
3260 1.13 christos local_got_offsets[r_symndx] |= 1;
3261 1.14 christos }
3262 1.13 christos }
3263 1.1 skrll
3264 1.13 christos if (relative_reloc)
3265 1.1 skrll {
3266 1.13 christos asection *s = htab->elf.srelgot;
3267 1.13 christos Elf_Internal_Rela outrel;
3268 1.13 christos
3269 1.13 christos BFD_ASSERT (s != NULL);
3270 1.13 christos
3271 1.13 christos outrel.r_offset = (htab->elf.sgot->output_section->vma
3272 1.13 christos + htab->elf.sgot->output_offset
3273 1.13 christos + off);
3274 1.13 christos outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3275 1.13 christos 0, R_SPARC_RELATIVE);
3276 1.13 christos outrel.r_addend = relocation;
3277 1.13 christos sparc_elf_append_rela (output_bfd, s, &outrel);
3278 1.13 christos /* Versions of glibc ld.so at least up to 2.26 wrongly
3279 1.13 christos add the section contents to the value calculated for
3280 1.1 skrll a RELATIVE reloc. Zero the contents to work around
3281 1.13 christos this bug. */
3282 1.3 christos relocation = 0;
3283 1.1 skrll SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3284 1.1 skrll htab->elf.sgot->contents + off);
3285 1.1 skrll }
3286 1.1 skrll
3287 1.1 skrll relocation = htab->elf.sgot->output_offset + off - got_base;
3288 1.1 skrll break;
3289 1.1 skrll
3290 1.1 skrll case R_SPARC_PLT32:
3291 1.1 skrll case R_SPARC_PLT64:
3292 1.1 skrll if (h == NULL || h->plt.offset == (bfd_vma) -1)
3293 1.1 skrll {
3294 1.1 skrll r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3295 1.1 skrll goto r_sparc_plt32;
3296 1.1 skrll }
3297 1.1 skrll /* Fall through. */
3298 1.1 skrll
3299 1.1 skrll case R_SPARC_WPLT30:
3300 1.1 skrll case R_SPARC_HIPLT22:
3301 1.1 skrll case R_SPARC_LOPLT10:
3302 1.1 skrll case R_SPARC_PCPLT32:
3303 1.1 skrll case R_SPARC_PCPLT22:
3304 1.1 skrll case R_SPARC_PCPLT10:
3305 1.1 skrll r_sparc_wplt30:
3306 1.1 skrll /* Relocation is to the entry for this symbol in the
3307 1.1 skrll procedure linkage table. */
3308 1.1 skrll
3309 1.1 skrll if (! ABI_64_P (output_bfd))
3310 1.1 skrll {
3311 1.1 skrll /* The Solaris native assembler will generate a WPLT30 reloc
3312 1.1 skrll for a local symbol if you assemble a call from one
3313 1.7 christos section to another when using -K pic. We treat it as
3314 1.3 christos WDISP30. */
3315 1.3 christos if (h == NULL)
3316 1.1 skrll break;
3317 1.1 skrll }
3318 1.1 skrll /* PR 7027: We need similar behaviour for 64-bit binaries. */
3319 1.1 skrll else if (r_type == R_SPARC_WPLT30 && h == NULL)
3320 1.1 skrll break;
3321 1.3 christos else
3322 1.1 skrll {
3323 1.1 skrll BFD_ASSERT (h != NULL);
3324 1.1 skrll }
3325 1.1 skrll
3326 1.1 skrll if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3327 1.1 skrll {
3328 1.1 skrll /* We didn't make a PLT entry for this symbol. This
3329 1.3 christos happens when statically linking PIC code, or when
3330 1.3 christos using -Bsymbolic. */
3331 1.1 skrll break;
3332 1.1 skrll }
3333 1.1 skrll
3334 1.1 skrll relocation = (htab->elf.splt->output_section->vma
3335 1.1 skrll + htab->elf.splt->output_offset
3336 1.1 skrll + h->plt.offset);
3337 1.1 skrll unresolved_reloc = FALSE;
3338 1.1 skrll if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3339 1.1 skrll {
3340 1.1 skrll r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3341 1.1 skrll is_plt = TRUE;
3342 1.1 skrll goto r_sparc_plt32;
3343 1.1 skrll }
3344 1.1 skrll break;
3345 1.1 skrll
3346 1.1 skrll case R_SPARC_PC10:
3347 1.1 skrll case R_SPARC_PC22:
3348 1.1 skrll case R_SPARC_PC_HH22:
3349 1.1 skrll case R_SPARC_PC_HM10:
3350 1.1 skrll case R_SPARC_PC_LM22:
3351 1.1 skrll if (h != NULL
3352 1.1 skrll && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3353 1.1 skrll break;
3354 1.1 skrll /* Fall through. */
3355 1.1 skrll case R_SPARC_DISP8:
3356 1.1 skrll case R_SPARC_DISP16:
3357 1.1 skrll case R_SPARC_DISP32:
3358 1.6 christos case R_SPARC_DISP64:
3359 1.1 skrll case R_SPARC_WDISP30:
3360 1.1 skrll case R_SPARC_WDISP22:
3361 1.1 skrll case R_SPARC_WDISP19:
3362 1.1 skrll case R_SPARC_WDISP16:
3363 1.1 skrll case R_SPARC_WDISP10:
3364 1.1 skrll case R_SPARC_8:
3365 1.1 skrll case R_SPARC_16:
3366 1.1 skrll case R_SPARC_32:
3367 1.1 skrll case R_SPARC_HI22:
3368 1.1 skrll case R_SPARC_22:
3369 1.1 skrll case R_SPARC_13:
3370 1.1 skrll case R_SPARC_LO10:
3371 1.1 skrll case R_SPARC_UA16:
3372 1.1 skrll case R_SPARC_UA32:
3373 1.1 skrll case R_SPARC_10:
3374 1.1 skrll case R_SPARC_11:
3375 1.1 skrll case R_SPARC_64:
3376 1.1 skrll case R_SPARC_OLO10:
3377 1.1 skrll case R_SPARC_HH22:
3378 1.1 skrll case R_SPARC_HM10:
3379 1.1 skrll case R_SPARC_LM22:
3380 1.1 skrll case R_SPARC_7:
3381 1.1 skrll case R_SPARC_5:
3382 1.1 skrll case R_SPARC_6:
3383 1.6 christos case R_SPARC_HIX22:
3384 1.1 skrll case R_SPARC_LOX10:
3385 1.1 skrll case R_SPARC_H44:
3386 1.14 christos case R_SPARC_M44:
3387 1.1 skrll case R_SPARC_L44:
3388 1.1 skrll case R_SPARC_H34:
3389 1.13 christos case R_SPARC_UA64:
3390 1.13 christos r_sparc_plt32:
3391 1.13 christos if ((input_section->flags & SEC_ALLOC) == 0 || is_vxworks_tls)
3392 1.7 christos break;
3393 1.1 skrll
3394 1.14 christos /* Copy dynamic function pointer relocations. Don't generate
3395 1.14 christos dynamic relocations against resolved undefined weak symbols
3396 1.14 christos in PIE. */
3397 1.1 skrll if ((bfd_link_pic (info)
3398 1.3 christos && (h == NULL
3399 1.7 christos || !(h->root.type == bfd_link_hash_undefweak
3400 1.1 skrll && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
3401 1.1 skrll || resolved_to_zero)))
3402 1.1 skrll && (! howto->pc_relative
3403 1.1 skrll || !SYMBOL_CALLS_LOCAL (info, h)))
3404 1.1 skrll || (!bfd_link_pic (info)
3405 1.13 christos && h != NULL
3406 1.13 christos && h->dynindx != -1
3407 1.1 skrll && !h->non_got_ref
3408 1.1 skrll && ((h->def_dynamic
3409 1.1 skrll && !h->def_regular)
3410 1.1 skrll || (h->root.type == bfd_link_hash_undefweak
3411 1.1 skrll && !resolved_to_zero)
3412 1.1 skrll || h->root.type == bfd_link_hash_undefined)))
3413 1.1 skrll {
3414 1.1 skrll Elf_Internal_Rela outrel;
3415 1.1 skrll bfd_boolean skip, relocate = FALSE;
3416 1.1 skrll
3417 1.1 skrll /* When generating a shared object, these relocations
3418 1.1 skrll are copied into the output file to be resolved at run
3419 1.1 skrll time. */
3420 1.1 skrll
3421 1.1 skrll BFD_ASSERT (sreloc != NULL);
3422 1.1 skrll
3423 1.1 skrll skip = FALSE;
3424 1.1 skrll
3425 1.1 skrll outrel.r_offset =
3426 1.1 skrll _bfd_elf_section_offset (output_bfd, info, input_section,
3427 1.1 skrll rel->r_offset);
3428 1.1 skrll if (outrel.r_offset == (bfd_vma) -1)
3429 1.1 skrll skip = TRUE;
3430 1.1 skrll else if (outrel.r_offset == (bfd_vma) -2)
3431 1.1 skrll skip = TRUE, relocate = TRUE;
3432 1.1 skrll outrel.r_offset += (input_section->output_section->vma
3433 1.1 skrll + input_section->output_offset);
3434 1.1 skrll
3435 1.1 skrll /* Optimize unaligned reloc usage now that we know where
3436 1.1 skrll it finally resides. */
3437 1.1 skrll switch (r_type)
3438 1.1 skrll {
3439 1.1 skrll case R_SPARC_16:
3440 1.1 skrll if (outrel.r_offset & 1)
3441 1.1 skrll r_type = R_SPARC_UA16;
3442 1.1 skrll break;
3443 1.1 skrll case R_SPARC_UA16:
3444 1.1 skrll if (!(outrel.r_offset & 1))
3445 1.1 skrll r_type = R_SPARC_16;
3446 1.1 skrll break;
3447 1.1 skrll case R_SPARC_32:
3448 1.1 skrll if (outrel.r_offset & 3)
3449 1.1 skrll r_type = R_SPARC_UA32;
3450 1.1 skrll break;
3451 1.1 skrll case R_SPARC_UA32:
3452 1.1 skrll if (!(outrel.r_offset & 3))
3453 1.1 skrll r_type = R_SPARC_32;
3454 1.1 skrll break;
3455 1.1 skrll case R_SPARC_64:
3456 1.1 skrll if (outrel.r_offset & 7)
3457 1.1 skrll r_type = R_SPARC_UA64;
3458 1.13 christos break;
3459 1.1 skrll case R_SPARC_UA64:
3460 1.13 christos if (!(outrel.r_offset & 7))
3461 1.13 christos r_type = R_SPARC_64;
3462 1.1 skrll break;
3463 1.1 skrll case R_SPARC_DISP8:
3464 1.1 skrll case R_SPARC_DISP16:
3465 1.1 skrll case R_SPARC_DISP32:
3466 1.1 skrll case R_SPARC_DISP64:
3467 1.1 skrll /* If the symbol is not dynamic, we should not keep
3468 1.1 skrll a dynamic relocation. But an .rela.* slot has been
3469 1.1 skrll allocated for it, output R_SPARC_NONE.
3470 1.1 skrll FIXME: Add code tracking needed dynamic relocs as
3471 1.1 skrll e.g. i386 has. */
3472 1.1 skrll if (h->dynindx == -1)
3473 1.1 skrll skip = TRUE, relocate = TRUE;
3474 1.1 skrll break;
3475 1.1 skrll }
3476 1.7 christos
3477 1.7 christos if (skip)
3478 1.7 christos memset (&outrel, 0, sizeof outrel);
3479 1.7 christos /* h->dynindx may be -1 if the symbol was marked to
3480 1.5 christos become local. */
3481 1.5 christos else if (h != NULL
3482 1.1 skrll && h->dynindx != -1
3483 1.1 skrll && (_bfd_sparc_elf_howto_table[r_type].pc_relative
3484 1.1 skrll || !bfd_link_pic (info)
3485 1.1 skrll || !SYMBOLIC_BIND (info, h)
3486 1.1 skrll || !h->def_regular))
3487 1.1 skrll {
3488 1.11 christos outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3489 1.11 christos outrel.r_addend = rel->r_addend;
3490 1.1 skrll }
3491 1.1 skrll else
3492 1.1 skrll {
3493 1.1 skrll if ( (!ABI_64_P (output_bfd) && r_type == R_SPARC_32)
3494 1.1 skrll || (ABI_64_P (output_bfd) && r_type == R_SPARC_64))
3495 1.1 skrll {
3496 1.1 skrll outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3497 1.1 skrll 0, R_SPARC_RELATIVE);
3498 1.1 skrll outrel.r_addend = relocation + rel->r_addend;
3499 1.1 skrll }
3500 1.1 skrll else
3501 1.1 skrll {
3502 1.3 christos long indx;
3503 1.1 skrll
3504 1.1 skrll outrel.r_addend = relocation + rel->r_addend;
3505 1.1 skrll
3506 1.1 skrll if (is_plt)
3507 1.1 skrll sec = htab->elf.splt;
3508 1.1 skrll
3509 1.1 skrll if (bfd_is_abs_section (sec))
3510 1.1 skrll indx = 0;
3511 1.1 skrll else if (sec == NULL || sec->owner == NULL)
3512 1.1 skrll {
3513 1.1 skrll bfd_set_error (bfd_error_bad_value);
3514 1.1 skrll return FALSE;
3515 1.1 skrll }
3516 1.1 skrll else
3517 1.1 skrll {
3518 1.1 skrll asection *osec;
3519 1.1 skrll
3520 1.1 skrll /* We are turning this relocation into one
3521 1.1 skrll against a section symbol. It would be
3522 1.1 skrll proper to subtract the symbol's value,
3523 1.1 skrll osec->vma, from the emitted reloc addend,
3524 1.1 skrll but ld.so expects buggy relocs. */
3525 1.1 skrll osec = sec->output_section;
3526 1.1 skrll indx = elf_section_data (osec)->dynindx;
3527 1.1 skrll
3528 1.1 skrll if (indx == 0)
3529 1.1 skrll {
3530 1.1 skrll osec = htab->elf.text_index_section;
3531 1.1 skrll indx = elf_section_data (osec)->dynindx;
3532 1.1 skrll }
3533 1.1 skrll
3534 1.13 christos /* FIXME: we really should be able to link non-pic
3535 1.14 christos shared libraries. */
3536 1.1 skrll if (indx == 0)
3537 1.1 skrll {
3538 1.1 skrll BFD_FAIL ();
3539 1.1 skrll _bfd_error_handler
3540 1.1 skrll (_("%pB: probably compiled without -fPIC?"),
3541 1.1 skrll input_bfd);
3542 1.1 skrll bfd_set_error (bfd_error_bad_value);
3543 1.1 skrll return FALSE;
3544 1.1 skrll }
3545 1.1 skrll }
3546 1.1 skrll
3547 1.1 skrll outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3548 1.1 skrll r_type);
3549 1.1 skrll }
3550 1.1 skrll }
3551 1.1 skrll
3552 1.1 skrll sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3553 1.1 skrll
3554 1.1 skrll /* This reloc will be computed at runtime, so there's no
3555 1.1 skrll need to do anything now. */
3556 1.1 skrll if (! relocate)
3557 1.1 skrll continue;
3558 1.1 skrll }
3559 1.1 skrll break;
3560 1.14 christos
3561 1.14 christos case R_SPARC_TLS_GD_HI22:
3562 1.14 christos case R_SPARC_TLS_GD_LO10:
3563 1.14 christos case R_SPARC_TLS_IE_HI22:
3564 1.14 christos case R_SPARC_TLS_IE_LO10:
3565 1.14 christos r_type = sparc_elf_tls_transition (info, input_bfd, r_type,
3566 1.14 christos h == NULL || h->dynindx == -1);
3567 1.1 skrll if (r_type == R_SPARC_REV32)
3568 1.1 skrll break;
3569 1.1 skrll if (h != NULL)
3570 1.1 skrll tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
3571 1.12 joerg else if (local_got_offsets)
3572 1.7 christos tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3573 1.7 christos else if (h != NULL)
3574 1.1 skrll {
3575 1.1 skrll tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3576 1.1 skrll if (!bfd_link_dll (info)
3577 1.1 skrll && h->dynindx == -1
3578 1.1 skrll && tls_type == GOT_TLS_IE)
3579 1.1 skrll switch (SPARC_ELF_R_TYPE (rel->r_info))
3580 1.1 skrll {
3581 1.1 skrll case R_SPARC_TLS_GD_HI22:
3582 1.1 skrll case R_SPARC_TLS_IE_HI22:
3583 1.1 skrll r_type = R_SPARC_TLS_LE_HIX22;
3584 1.1 skrll break;
3585 1.14 christos default:
3586 1.14 christos r_type = R_SPARC_TLS_LE_LOX10;
3587 1.1 skrll break;
3588 1.1 skrll }
3589 1.1 skrll }
3590 1.1 skrll else
3591 1.1 skrll tls_type = GOT_UNKNOWN;
3592 1.1 skrll if (tls_type == GOT_TLS_IE)
3593 1.1 skrll switch (r_type)
3594 1.1 skrll {
3595 1.1 skrll case R_SPARC_TLS_GD_HI22:
3596 1.1 skrll r_type = R_SPARC_TLS_IE_HI22;
3597 1.1 skrll break;
3598 1.1 skrll case R_SPARC_TLS_GD_LO10:
3599 1.1 skrll r_type = R_SPARC_TLS_IE_LO10;
3600 1.1 skrll break;
3601 1.1 skrll }
3602 1.1 skrll
3603 1.1 skrll if (r_type == R_SPARC_TLS_LE_HIX22)
3604 1.1 skrll {
3605 1.1 skrll relocation = tpoff (info, relocation);
3606 1.1 skrll break;
3607 1.1 skrll }
3608 1.1 skrll if (r_type == R_SPARC_TLS_LE_LOX10)
3609 1.1 skrll {
3610 1.1 skrll /* Change add into xor. */
3611 1.1 skrll relocation = tpoff (info, relocation);
3612 1.1 skrll bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3613 1.1 skrll contents + rel->r_offset)
3614 1.1 skrll | 0x80182000), contents + rel->r_offset);
3615 1.1 skrll break;
3616 1.1 skrll }
3617 1.1 skrll
3618 1.1 skrll if (h != NULL)
3619 1.1 skrll {
3620 1.1 skrll off = h->got.offset;
3621 1.1 skrll h->got.offset |= 1;
3622 1.1 skrll }
3623 1.1 skrll else
3624 1.1 skrll {
3625 1.1 skrll BFD_ASSERT (local_got_offsets != NULL);
3626 1.3 christos off = local_got_offsets[r_symndx];
3627 1.1 skrll local_got_offsets[r_symndx] |= 1;
3628 1.1 skrll }
3629 1.1 skrll
3630 1.1 skrll r_sparc_tlsldm:
3631 1.1 skrll if (htab->elf.sgot == NULL)
3632 1.1 skrll abort ();
3633 1.1 skrll
3634 1.1 skrll if ((off & 1) != 0)
3635 1.1 skrll off &= ~1;
3636 1.3 christos else
3637 1.1 skrll {
3638 1.1 skrll Elf_Internal_Rela outrel;
3639 1.3 christos int dr_type, indx;
3640 1.3 christos
3641 1.3 christos if (htab->elf.srelgot == NULL)
3642 1.3 christos abort ();
3643 1.1 skrll
3644 1.1 skrll SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3645 1.1 skrll htab->elf.sgot->contents + off);
3646 1.1 skrll outrel.r_offset = (htab->elf.sgot->output_section->vma
3647 1.1 skrll + htab->elf.sgot->output_offset + off);
3648 1.1 skrll indx = h && h->dynindx != -1 ? h->dynindx : 0;
3649 1.1 skrll if (r_type == R_SPARC_TLS_IE_HI22
3650 1.1 skrll || r_type == R_SPARC_TLS_IE_LO10)
3651 1.1 skrll dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3652 1.1 skrll else
3653 1.1 skrll dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3654 1.3 christos if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3655 1.1 skrll outrel.r_addend = relocation - dtpoff_base (info);
3656 1.1 skrll else
3657 1.1 skrll outrel.r_addend = 0;
3658 1.1 skrll outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
3659 1.1 skrll sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3660 1.1 skrll
3661 1.13 christos if (r_type == R_SPARC_TLS_GD_HI22
3662 1.1 skrll || r_type == R_SPARC_TLS_GD_LO10)
3663 1.1 skrll {
3664 1.3 christos if (indx == 0)
3665 1.1 skrll {
3666 1.1 skrll BFD_ASSERT (! unresolved_reloc);
3667 1.1 skrll SPARC_ELF_PUT_WORD (htab, output_bfd,
3668 1.1 skrll relocation - dtpoff_base (info),
3669 1.1 skrll (htab->elf.sgot->contents + off
3670 1.3 christos + SPARC_ELF_WORD_BYTES (htab)));
3671 1.1 skrll }
3672 1.1 skrll else
3673 1.1 skrll {
3674 1.1 skrll SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3675 1.3 christos (htab->elf.sgot->contents + off
3676 1.1 skrll + SPARC_ELF_WORD_BYTES (htab)));
3677 1.1 skrll outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3678 1.1 skrll SPARC_ELF_DTPOFF_RELOC (htab));
3679 1.1 skrll outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
3680 1.1 skrll sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
3681 1.1 skrll &outrel);
3682 1.3 christos }
3683 1.1 skrll }
3684 1.1 skrll else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3685 1.1 skrll {
3686 1.1 skrll SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3687 1.1 skrll (htab->elf.sgot->contents + off
3688 1.1 skrll + SPARC_ELF_WORD_BYTES (htab)));
3689 1.1 skrll }
3690 1.3 christos }
3691 1.1 skrll
3692 1.1 skrll if (off >= (bfd_vma) -2)
3693 1.1 skrll abort ();
3694 1.1 skrll
3695 1.1 skrll relocation = htab->elf.sgot->output_offset + off - got_base;
3696 1.1 skrll unresolved_reloc = FALSE;
3697 1.14 christos howto = _bfd_sparc_elf_howto_table + r_type;
3698 1.14 christos break;
3699 1.1 skrll
3700 1.1 skrll case R_SPARC_TLS_LDM_HI22:
3701 1.1 skrll case R_SPARC_TLS_LDM_LO10:
3702 1.1 skrll /* LD -> LE */
3703 1.1 skrll if (bfd_link_executable (info))
3704 1.1 skrll {
3705 1.1 skrll bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3706 1.1 skrll continue;
3707 1.1 skrll }
3708 1.1 skrll off = htab->tls_ldm_got.offset;
3709 1.14 christos htab->tls_ldm_got.offset |= 1;
3710 1.14 christos goto r_sparc_tlsldm;
3711 1.14 christos
3712 1.14 christos case R_SPARC_TLS_LDO_HIX22:
3713 1.14 christos case R_SPARC_TLS_LDO_LOX10:
3714 1.14 christos /* LD -> LE */
3715 1.14 christos if (bfd_link_executable (info))
3716 1.14 christos {
3717 1.14 christos if (r_type == R_SPARC_TLS_LDO_HIX22)
3718 1.1 skrll r_type = R_SPARC_TLS_LE_HIX22;
3719 1.1 skrll else
3720 1.1 skrll r_type = R_SPARC_TLS_LE_LOX10;
3721 1.1 skrll }
3722 1.1 skrll else
3723 1.1 skrll {
3724 1.1 skrll relocation -= dtpoff_base (info);
3725 1.1 skrll break;
3726 1.14 christos }
3727 1.1 skrll /* Fall through. */
3728 1.1 skrll
3729 1.14 christos case R_SPARC_TLS_LE_HIX22:
3730 1.14 christos case R_SPARC_TLS_LE_LOX10:
3731 1.14 christos if (!bfd_link_executable (info))
3732 1.14 christos {
3733 1.1 skrll Elf_Internal_Rela outrel;
3734 1.1 skrll bfd_vma offset
3735 1.1 skrll = _bfd_elf_section_offset (output_bfd, info, input_section,
3736 1.14 christos rel->r_offset);
3737 1.14 christos if (offset == (bfd_vma) -1 || offset == (bfd_vma) -2)
3738 1.14 christos memset (&outrel, 0, sizeof outrel);
3739 1.1 skrll else
3740 1.14 christos {
3741 1.14 christos outrel.r_offset = offset
3742 1.1 skrll + input_section->output_section->vma
3743 1.1 skrll + input_section->output_offset;
3744 1.14 christos outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
3745 1.1 skrll outrel.r_addend
3746 1.1 skrll = relocation - dtpoff_base (info) + rel->r_addend;
3747 1.1 skrll }
3748 1.1 skrll
3749 1.1 skrll BFD_ASSERT (sreloc != NULL);
3750 1.1 skrll sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3751 1.1 skrll continue;
3752 1.14 christos }
3753 1.14 christos relocation = tpoff (info, relocation);
3754 1.1 skrll break;
3755 1.1 skrll
3756 1.1 skrll case R_SPARC_TLS_LDM_CALL:
3757 1.1 skrll /* LD -> LE */
3758 1.1 skrll if (bfd_link_executable (info))
3759 1.1 skrll {
3760 1.1 skrll /* mov %g0, %o0 */
3761 1.1 skrll bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3762 1.14 christos continue;
3763 1.14 christos }
3764 1.14 christos /* Fall through */
3765 1.1 skrll
3766 1.1 skrll case R_SPARC_TLS_GD_CALL:
3767 1.1 skrll if (h != NULL)
3768 1.14 christos tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
3769 1.14 christos else if (local_got_offsets)
3770 1.14 christos tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3771 1.14 christos else if (h != NULL)
3772 1.1 skrll tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3773 1.1 skrll else
3774 1.6 christos tls_type = GOT_UNKNOWN;
3775 1.1 skrll /* GD -> IE or LE */
3776 1.1 skrll if (bfd_link_executable (info)
3777 1.14 christos || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3778 1.14 christos {
3779 1.1 skrll Elf_Internal_Rela *rel2;
3780 1.1 skrll bfd_vma insn;
3781 1.1 skrll
3782 1.1 skrll /* GD -> LE */
3783 1.1 skrll if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
3784 1.1 skrll {
3785 1.1 skrll bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3786 1.1 skrll continue;
3787 1.1 skrll }
3788 1.1 skrll
3789 1.1 skrll /* GD -> IE */
3790 1.1 skrll if (rel + 1 < relend
3791 1.1 skrll && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3792 1.1 skrll && rel[1].r_offset == rel->r_offset + 4
3793 1.1 skrll && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3794 1.1 skrll && (((insn = bfd_get_32 (input_bfd,
3795 1.1 skrll contents + rel[1].r_offset))
3796 1.1 skrll >> 25) & 0x1f) == 8)
3797 1.1 skrll {
3798 1.1 skrll /* We have
3799 1.1 skrll call __tls_get_addr, %tgd_call(foo)
3800 1.1 skrll add %reg1, %reg2, %o0, %tgd_add(foo)
3801 1.1 skrll and change it into IE:
3802 1.1 skrll {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3803 1.1 skrll add %g7, %o0, %o0, %tie_add(foo).
3804 1.1 skrll add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3805 1.1 skrll ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3806 1.1 skrll ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3807 1.1 skrll bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3808 1.1 skrll contents + rel->r_offset);
3809 1.1 skrll bfd_put_32 (output_bfd, 0x9001c008,
3810 1.6 christos contents + rel->r_offset + 4);
3811 1.6 christos rel++;
3812 1.6 christos continue;
3813 1.6 christos }
3814 1.6 christos
3815 1.6 christos /* We cannot just overwrite the delay slot instruction,
3816 1.6 christos as it might be what puts the %o0 argument to
3817 1.6 christos __tls_get_addr into place. So we have to transpose
3818 1.6 christos the delay slot with the add we patch in. */
3819 1.6 christos insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3820 1.6 christos bfd_put_32 (output_bfd, insn,
3821 1.6 christos contents + rel->r_offset);
3822 1.6 christos bfd_put_32 (output_bfd, 0x9001c008,
3823 1.6 christos contents + rel->r_offset + 4);
3824 1.6 christos
3825 1.6 christos rel2 = rel;
3826 1.6 christos while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend,
3827 1.6 christos rel->r_offset + 4))
3828 1.6 christos != NULL)
3829 1.6 christos {
3830 1.1 skrll /* If the instruction we moved has a relocation attached to
3831 1.1 skrll it, adjust the offset so that it will apply to the correct
3832 1.1 skrll instruction. */
3833 1.1 skrll rel2->r_offset -= 4;
3834 1.1 skrll }
3835 1.1 skrll continue;
3836 1.1 skrll }
3837 1.1 skrll
3838 1.1 skrll h = (struct elf_link_hash_entry *)
3839 1.1 skrll bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3840 1.1 skrll FALSE, TRUE);
3841 1.1 skrll BFD_ASSERT (h != NULL);
3842 1.14 christos r_type = R_SPARC_WPLT30;
3843 1.14 christos howto = _bfd_sparc_elf_howto_table + r_type;
3844 1.14 christos goto r_sparc_wplt30;
3845 1.1 skrll
3846 1.14 christos case R_SPARC_TLS_GD_ADD:
3847 1.14 christos if (h != NULL)
3848 1.14 christos tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
3849 1.14 christos else if (local_got_offsets)
3850 1.1 skrll tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3851 1.1 skrll else
3852 1.1 skrll tls_type = GOT_UNKNOWN;
3853 1.1 skrll /* GD -> IE or LE */
3854 1.1 skrll if (bfd_link_executable (info) || tls_type == GOT_TLS_IE)
3855 1.1 skrll {
3856 1.1 skrll /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3857 1.14 christos changed into IE:
3858 1.14 christos {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
3859 1.14 christos or LE:
3860 1.1 skrll add %g7, %reg2, %reg3. */
3861 1.1 skrll bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3862 1.1 skrll if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
3863 1.1 skrll relocation = (insn & ~0x7c000) | 0x1c000;
3864 1.1 skrll else
3865 1.1 skrll relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
3866 1.14 christos bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3867 1.14 christos }
3868 1.1 skrll continue;
3869 1.1 skrll
3870 1.1 skrll case R_SPARC_TLS_LDM_ADD:
3871 1.1 skrll /* LD -> LE */
3872 1.14 christos if (bfd_link_executable (info))
3873 1.14 christos bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3874 1.1 skrll continue;
3875 1.1 skrll
3876 1.1 skrll case R_SPARC_TLS_LDO_ADD:
3877 1.1 skrll /* LD -> LE */
3878 1.1 skrll if (bfd_link_executable (info))
3879 1.1 skrll {
3880 1.1 skrll /* Change rs1 into %g7. */
3881 1.1 skrll bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3882 1.1 skrll insn = (insn & ~0x7c000) | 0x1c000;
3883 1.1 skrll bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3884 1.14 christos }
3885 1.14 christos continue;
3886 1.1 skrll
3887 1.1 skrll case R_SPARC_TLS_IE_LD:
3888 1.1 skrll case R_SPARC_TLS_IE_LDX:
3889 1.1 skrll /* IE -> LE */
3890 1.1 skrll if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
3891 1.1 skrll {
3892 1.1 skrll bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3893 1.1 skrll int rs2 = insn & 0x1f;
3894 1.1 skrll int rd = (insn >> 25) & 0x1f;
3895 1.1 skrll
3896 1.1 skrll if (rs2 == rd)
3897 1.1 skrll relocation = SPARC_NOP;
3898 1.1 skrll else
3899 1.1 skrll relocation = 0x80100000 | (insn & 0x3e00001f);
3900 1.1 skrll bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3901 1.1 skrll }
3902 1.1 skrll continue;
3903 1.1 skrll
3904 1.1 skrll case R_SPARC_TLS_IE_ADD:
3905 1.1 skrll /* Totally useless relocation. */
3906 1.1 skrll continue;
3907 1.1 skrll
3908 1.1 skrll case R_SPARC_TLS_DTPOFF32:
3909 1.1 skrll case R_SPARC_TLS_DTPOFF64:
3910 1.1 skrll relocation -= dtpoff_base (info);
3911 1.1 skrll break;
3912 1.1 skrll
3913 1.1 skrll default:
3914 1.1 skrll break;
3915 1.1 skrll }
3916 1.1 skrll
3917 1.6 christos /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3918 1.6 christos because such sections are not SEC_ALLOC and thus ld.so will
3919 1.6 christos not process them. */
3920 1.13 christos if (unresolved_reloc
3921 1.13 christos && !((input_section->flags & SEC_DEBUGGING) != 0
3922 1.14 christos && h->def_dynamic)
3923 1.14 christos && _bfd_elf_section_offset (output_bfd, info, input_section,
3924 1.1 skrll rel->r_offset) != (bfd_vma) -1)
3925 1.1 skrll _bfd_error_handler
3926 1.14 christos /* xgettext:c-format */
3927 1.1 skrll (_("%pB(%pA+%#" PRIx64 "): "
3928 1.1 skrll "unresolvable %s relocation against symbol `%s'"),
3929 1.1 skrll input_bfd,
3930 1.1 skrll input_section,
3931 1.1 skrll (uint64_t) rel->r_offset,
3932 1.1 skrll howto->name,
3933 1.1 skrll h->root.root.string);
3934 1.1 skrll
3935 1.1 skrll r = bfd_reloc_continue;
3936 1.1 skrll if (r_type == R_SPARC_OLO10)
3937 1.1 skrll {
3938 1.1 skrll bfd_vma x;
3939 1.1 skrll
3940 1.1 skrll if (! ABI_64_P (output_bfd))
3941 1.1 skrll abort ();
3942 1.1 skrll
3943 1.1 skrll relocation += rel->r_addend;
3944 1.1 skrll relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
3945 1.1 skrll
3946 1.1 skrll x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3947 1.1 skrll x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
3948 1.1 skrll bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3949 1.1 skrll
3950 1.1 skrll r = bfd_check_overflow (howto->complain_on_overflow,
3951 1.1 skrll howto->bitsize, howto->rightshift,
3952 1.1 skrll bfd_arch_bits_per_address (input_bfd),
3953 1.1 skrll relocation);
3954 1.1 skrll }
3955 1.1 skrll else if (r_type == R_SPARC_WDISP16)
3956 1.1 skrll {
3957 1.1 skrll bfd_vma x;
3958 1.1 skrll
3959 1.1 skrll relocation += rel->r_addend;
3960 1.1 skrll relocation -= (input_section->output_section->vma
3961 1.1 skrll + input_section->output_offset);
3962 1.1 skrll relocation -= rel->r_offset;
3963 1.1 skrll
3964 1.1 skrll x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3965 1.1 skrll x |= ((((relocation >> 2) & 0xc000) << 6)
3966 1.1 skrll | ((relocation >> 2) & 0x3fff));
3967 1.1 skrll bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3968 1.1 skrll
3969 1.6 christos r = bfd_check_overflow (howto->complain_on_overflow,
3970 1.6 christos howto->bitsize, howto->rightshift,
3971 1.6 christos bfd_arch_bits_per_address (input_bfd),
3972 1.6 christos relocation);
3973 1.6 christos }
3974 1.6 christos else if (r_type == R_SPARC_WDISP10)
3975 1.6 christos {
3976 1.6 christos bfd_vma x;
3977 1.6 christos
3978 1.6 christos relocation += rel->r_addend;
3979 1.6 christos relocation -= (input_section->output_section->vma
3980 1.6 christos + input_section->output_offset);
3981 1.6 christos relocation -= rel->r_offset;
3982 1.6 christos
3983 1.6 christos x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3984 1.6 christos x |= ((((relocation >> 2) & 0x300) << 11)
3985 1.6 christos | (((relocation >> 2) & 0xff) << 5));
3986 1.6 christos bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3987 1.6 christos
3988 1.1 skrll r = bfd_check_overflow (howto->complain_on_overflow,
3989 1.1 skrll howto->bitsize, howto->rightshift,
3990 1.1 skrll bfd_arch_bits_per_address (input_bfd),
3991 1.1 skrll relocation);
3992 1.1 skrll }
3993 1.1 skrll else if (r_type == R_SPARC_REV32)
3994 1.1 skrll {
3995 1.1 skrll bfd_vma x;
3996 1.1 skrll
3997 1.1 skrll relocation = relocation + rel->r_addend;
3998 1.1 skrll
3999 1.1 skrll x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4000 1.1 skrll x = x + relocation;
4001 1.1 skrll bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
4002 1.1 skrll r = bfd_reloc_ok;
4003 1.1 skrll }
4004 1.1 skrll else if (r_type == R_SPARC_TLS_LDO_HIX22
4005 1.1 skrll || r_type == R_SPARC_TLS_LE_HIX22)
4006 1.1 skrll {
4007 1.1 skrll bfd_vma x;
4008 1.1 skrll
4009 1.1 skrll relocation += rel->r_addend;
4010 1.1 skrll if (r_type == R_SPARC_TLS_LE_HIX22)
4011 1.1 skrll relocation ^= MINUS_ONE;
4012 1.1 skrll
4013 1.1 skrll x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4014 1.1 skrll x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4015 1.1 skrll bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4016 1.1 skrll r = bfd_reloc_ok;
4017 1.1 skrll }
4018 1.1 skrll else if (r_type == R_SPARC_TLS_LDO_LOX10
4019 1.1 skrll || r_type == R_SPARC_TLS_LE_LOX10)
4020 1.1 skrll {
4021 1.1 skrll bfd_vma x;
4022 1.1 skrll
4023 1.1 skrll relocation += rel->r_addend;
4024 1.1 skrll relocation &= 0x3ff;
4025 1.1 skrll if (r_type == R_SPARC_TLS_LE_LOX10)
4026 1.1 skrll relocation |= 0x1c00;
4027 1.1 skrll
4028 1.1 skrll x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4029 1.3 christos x = (x & ~(bfd_vma) 0x1fff) | relocation;
4030 1.13 christos bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4031 1.13 christos
4032 1.1 skrll r = bfd_reloc_ok;
4033 1.1 skrll }
4034 1.1 skrll else if (r_type == R_SPARC_HIX22
4035 1.1 skrll || r_type == R_SPARC_GOTDATA_HIX22
4036 1.3 christos || r_type == R_SPARC_GOTDATA_OP_HIX22)
4037 1.3 christos {
4038 1.3 christos bfd_vma x;
4039 1.1 skrll
4040 1.1 skrll relocation += rel->r_addend;
4041 1.1 skrll if (r_type == R_SPARC_HIX22
4042 1.1 skrll || (bfd_signed_vma) relocation < 0)
4043 1.1 skrll relocation = relocation ^ MINUS_ONE;
4044 1.1 skrll
4045 1.1 skrll x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4046 1.1 skrll x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4047 1.1 skrll bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4048 1.1 skrll
4049 1.3 christos r = bfd_check_overflow (howto->complain_on_overflow,
4050 1.13 christos howto->bitsize, howto->rightshift,
4051 1.13 christos bfd_arch_bits_per_address (input_bfd),
4052 1.1 skrll relocation);
4053 1.1 skrll }
4054 1.1 skrll else if (r_type == R_SPARC_LOX10
4055 1.1 skrll || r_type == R_SPARC_GOTDATA_LOX10
4056 1.3 christos || r_type == R_SPARC_GOTDATA_OP_LOX10)
4057 1.3 christos {
4058 1.3 christos bfd_vma x;
4059 1.3 christos
4060 1.3 christos relocation += rel->r_addend;
4061 1.1 skrll if (r_type == R_SPARC_LOX10
4062 1.1 skrll || (bfd_signed_vma) relocation < 0)
4063 1.1 skrll relocation = (relocation & 0x3ff) | 0x1c00;
4064 1.1 skrll else
4065 1.1 skrll relocation = (relocation & 0x3ff);
4066 1.1 skrll
4067 1.1 skrll x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4068 1.1 skrll x = (x & ~(bfd_vma) 0x1fff) | relocation;
4069 1.1 skrll bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4070 1.1 skrll
4071 1.1 skrll r = bfd_reloc_ok;
4072 1.1 skrll }
4073 1.1 skrll else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
4074 1.1 skrll && sec_do_relax (input_section)
4075 1.1 skrll && rel->r_offset + 4 < input_section->size)
4076 1.1 skrll {
4077 1.1 skrll #define G0 0
4078 1.1 skrll #define O7 15
4079 1.1 skrll #define XCC (2 << 20)
4080 1.1 skrll #define COND(x) (((x)&0xf)<<25)
4081 1.1 skrll #define CONDA COND(0x8)
4082 1.1 skrll #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
4083 1.1 skrll #define INSN_BA (F2(0,2) | CONDA)
4084 1.1 skrll #define INSN_OR F3(2, 0x2, 0)
4085 1.1 skrll #define INSN_NOP F2(0,4)
4086 1.1 skrll
4087 1.1 skrll bfd_vma x, y;
4088 1.1 skrll
4089 1.1 skrll /* If the instruction is a call with either:
4090 1.1 skrll restore
4091 1.1 skrll arithmetic instruction with rd == %o7
4092 1.1 skrll where rs1 != %o7 and rs2 if it is register != %o7
4093 1.1 skrll then we can optimize if the call destination is near
4094 1.1 skrll by changing the call into a branch always. */
4095 1.1 skrll x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4096 1.1 skrll y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
4097 1.1 skrll if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
4098 1.1 skrll {
4099 1.1 skrll if (((y & OP3(~0)) == OP3(0x3d) /* restore */
4100 1.1 skrll || ((y & OP3(0x28)) == 0 /* arithmetic */
4101 1.1 skrll && (y & RD(~0)) == RD(O7)))
4102 1.1 skrll && (y & RS1(~0)) != RS1(O7)
4103 1.1 skrll && ((y & F3I(~0))
4104 1.1 skrll || (y & RS2(~0)) != RS2(O7)))
4105 1.1 skrll {
4106 1.1 skrll bfd_vma reloc;
4107 1.1 skrll
4108 1.1 skrll reloc = relocation + rel->r_addend - rel->r_offset;
4109 1.1 skrll reloc -= (input_section->output_section->vma
4110 1.1 skrll + input_section->output_offset);
4111 1.1 skrll
4112 1.1 skrll /* Ensure the branch fits into simm22. */
4113 1.1 skrll if ((reloc & 3) == 0
4114 1.1 skrll && ((reloc & ~(bfd_vma)0x7fffff) == 0
4115 1.1 skrll || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
4116 1.1 skrll {
4117 1.1 skrll reloc >>= 2;
4118 1.1 skrll
4119 1.1 skrll /* Check whether it fits into simm19. */
4120 1.1 skrll if (((reloc & 0x3c0000) == 0
4121 1.1 skrll || (reloc & 0x3c0000) == 0x3c0000)
4122 1.1 skrll && (ABI_64_P (output_bfd)
4123 1.1 skrll || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
4124 1.1 skrll x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
4125 1.1 skrll else
4126 1.1 skrll x = INSN_BA | (reloc & 0x3fffff); /* ba */
4127 1.1 skrll bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4128 1.1 skrll r = bfd_reloc_ok;
4129 1.1 skrll if (rel->r_offset >= 4
4130 1.1 skrll && (y & (0xffffffff ^ RS1(~0)))
4131 1.1 skrll == (INSN_OR | RD(O7) | RS2(G0)))
4132 1.1 skrll {
4133 1.1 skrll bfd_vma z;
4134 1.1 skrll unsigned int reg;
4135 1.13 christos
4136 1.1 skrll z = bfd_get_32 (input_bfd,
4137 1.1 skrll contents + rel->r_offset - 4);
4138 1.1 skrll if ((z & (0xffffffff ^ RD(~0)))
4139 1.1 skrll != (INSN_OR | RS1(O7) | RS2(G0)))
4140 1.1 skrll continue;
4141 1.1 skrll
4142 1.1 skrll /* The sequence was
4143 1.1 skrll or %o7, %g0, %rN
4144 1.1 skrll call foo
4145 1.1 skrll or %rN, %g0, %o7
4146 1.1 skrll
4147 1.1 skrll If call foo was replaced with ba, replace
4148 1.13 christos or %rN, %g0, %o7 with nop. */
4149 1.1 skrll
4150 1.1 skrll reg = (y & RS1(~0)) >> 14;
4151 1.1 skrll if (reg != ((z & RD(~0)) >> 25)
4152 1.1 skrll || reg == G0 || reg == O7)
4153 1.1 skrll continue;
4154 1.1 skrll
4155 1.1 skrll bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
4156 1.1 skrll contents + rel->r_offset + 4);
4157 1.1 skrll }
4158 1.1 skrll
4159 1.1 skrll }
4160 1.3 christos }
4161 1.3 christos }
4162 1.3 christos }
4163 1.3 christos
4164 1.3 christos if (r == bfd_reloc_continue)
4165 1.3 christos {
4166 1.1 skrll do_relocation:
4167 1.1 skrll r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4168 1.1 skrll contents, rel->r_offset,
4169 1.1 skrll relocation, rel->r_addend);
4170 1.1 skrll }
4171 1.1 skrll if (r != bfd_reloc_ok)
4172 1.1 skrll {
4173 1.1 skrll switch (r)
4174 1.1 skrll {
4175 1.1 skrll default:
4176 1.1 skrll case bfd_reloc_outofrange:
4177 1.7 christos abort ();
4178 1.1 skrll case bfd_reloc_overflow:
4179 1.1 skrll {
4180 1.1 skrll const char *name;
4181 1.6 christos
4182 1.6 christos /* The Solaris native linker silently disregards overflows.
4183 1.6 christos We don't, but this breaks stabs debugging info, whose
4184 1.1 skrll relocations are only 32-bits wide. Ignore overflows in
4185 1.15 christos this case and also for discarded entries. */
4186 1.1 skrll if ((r_type == R_SPARC_32
4187 1.1 skrll || r_type == R_SPARC_UA32
4188 1.1 skrll || r_type == R_SPARC_DISP32)
4189 1.1 skrll && (((input_section->flags & SEC_DEBUGGING) != 0
4190 1.1 skrll && strcmp (bfd_section_name (input_section),
4191 1.1 skrll ".stab") == 0)
4192 1.1 skrll || _bfd_elf_section_offset (output_bfd, info,
4193 1.1 skrll input_section,
4194 1.1 skrll rel->r_offset)
4195 1.1 skrll == (bfd_vma)-1))
4196 1.1 skrll break;
4197 1.1 skrll
4198 1.1 skrll if (h != NULL)
4199 1.1 skrll {
4200 1.1 skrll /* Assume this is a call protected by other code that
4201 1.1 skrll detect the symbol is undefined. If this is the case,
4202 1.1 skrll we can safely ignore the overflow. If not, the
4203 1.1 skrll program is hosed anyway, and a little warning isn't
4204 1.13 christos going to help. */
4205 1.1 skrll if (h->root.type == bfd_link_hash_undefweak
4206 1.1 skrll && howto->pc_relative)
4207 1.1 skrll break;
4208 1.1 skrll
4209 1.1 skrll name = NULL;
4210 1.1 skrll }
4211 1.1 skrll else
4212 1.1 skrll {
4213 1.1 skrll name = bfd_elf_string_from_elf_section (input_bfd,
4214 1.15 christos symtab_hdr->sh_link,
4215 1.1 skrll sym->st_name);
4216 1.11 christos if (name == NULL)
4217 1.11 christos return FALSE;
4218 1.11 christos if (*name == '\0')
4219 1.1 skrll name = bfd_section_name (sec);
4220 1.1 skrll }
4221 1.1 skrll (*info->callbacks->reloc_overflow)
4222 1.1 skrll (info, (h ? &h->root : NULL), name, howto->name,
4223 1.1 skrll (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4224 1.1 skrll }
4225 1.1 skrll break;
4226 1.1 skrll }
4227 1.1 skrll }
4228 1.1 skrll }
4229 1.1 skrll
4230 1.1 skrll return TRUE;
4231 1.1 skrll }
4232 1.1 skrll
4233 1.1 skrll /* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
4234 1.1 skrll and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
4235 1.1 skrll is the offset of the associated .got.plt entry from
4236 1.1 skrll _GLOBAL_OFFSET_TABLE_. */
4237 1.1 skrll
4238 1.1 skrll static void
4239 1.1 skrll sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
4240 1.1 skrll bfd_vma plt_offset, bfd_vma plt_index,
4241 1.1 skrll bfd_vma got_offset)
4242 1.1 skrll {
4243 1.1 skrll bfd_vma got_base;
4244 1.1 skrll const bfd_vma *plt_entry;
4245 1.3 christos struct _bfd_sparc_elf_link_hash_table *htab;
4246 1.3 christos bfd_byte *loc;
4247 1.7 christos Elf_Internal_Rela rela;
4248 1.1 skrll
4249 1.1 skrll htab = _bfd_sparc_elf_hash_table (info);
4250 1.1 skrll BFD_ASSERT (htab != NULL);
4251 1.1 skrll
4252 1.1 skrll if (bfd_link_pic (info))
4253 1.1 skrll {
4254 1.1 skrll plt_entry = sparc_vxworks_shared_plt_entry;
4255 1.1 skrll got_base = 0;
4256 1.1 skrll }
4257 1.1 skrll else
4258 1.1 skrll {
4259 1.1 skrll plt_entry = sparc_vxworks_exec_plt_entry;
4260 1.1 skrll got_base = (htab->elf.hgot->root.u.def.value
4261 1.1 skrll + htab->elf.hgot->root.u.def.section->output_offset
4262 1.3 christos + htab->elf.hgot->root.u.def.section->output_section->vma);
4263 1.1 skrll }
4264 1.3 christos
4265 1.1 skrll /* Fill in the entry in the procedure linkage table. */
4266 1.3 christos bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
4267 1.1 skrll htab->elf.splt->contents + plt_offset);
4268 1.3 christos bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
4269 1.1 skrll htab->elf.splt->contents + plt_offset + 4);
4270 1.3 christos bfd_put_32 (output_bfd, plt_entry[2],
4271 1.1 skrll htab->elf.splt->contents + plt_offset + 8);
4272 1.3 christos bfd_put_32 (output_bfd, plt_entry[3],
4273 1.1 skrll htab->elf.splt->contents + plt_offset + 12);
4274 1.1 skrll bfd_put_32 (output_bfd, plt_entry[4],
4275 1.1 skrll htab->elf.splt->contents + plt_offset + 16);
4276 1.1 skrll bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
4277 1.3 christos htab->elf.splt->contents + plt_offset + 20);
4278 1.1 skrll /* PC-relative displacement for a branch to the start of
4279 1.3 christos the PLT section. */
4280 1.1 skrll bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4281 1.1 skrll & 0x003fffff),
4282 1.1 skrll htab->elf.splt->contents + plt_offset + 24);
4283 1.3 christos bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
4284 1.1 skrll htab->elf.splt->contents + plt_offset + 28);
4285 1.3 christos
4286 1.3 christos /* Fill in the .got.plt entry, pointing initially at the
4287 1.1 skrll second half of the PLT entry. */
4288 1.3 christos BFD_ASSERT (htab->elf.sgotplt != NULL);
4289 1.1 skrll bfd_put_32 (output_bfd,
4290 1.1 skrll htab->elf.splt->output_section->vma
4291 1.7 christos + htab->elf.splt->output_offset
4292 1.1 skrll + plt_offset + 20,
4293 1.1 skrll htab->elf.sgotplt->contents + got_offset);
4294 1.1 skrll
4295 1.1 skrll /* Add relocations to .rela.plt.unloaded. */
4296 1.1 skrll if (!bfd_link_pic (info))
4297 1.3 christos {
4298 1.3 christos loc = (htab->srelplt2->contents
4299 1.1 skrll + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4300 1.1 skrll
4301 1.1 skrll /* Relocate the initial sethi. */
4302 1.1 skrll rela.r_offset = (htab->elf.splt->output_section->vma
4303 1.1 skrll + htab->elf.splt->output_offset
4304 1.1 skrll + plt_offset);
4305 1.1 skrll rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4306 1.1 skrll rela.r_addend = got_offset;
4307 1.1 skrll bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4308 1.1 skrll loc += sizeof (Elf32_External_Rela);
4309 1.1 skrll
4310 1.1 skrll /* Likewise the following or. */
4311 1.1 skrll rela.r_offset += 4;
4312 1.3 christos rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4313 1.3 christos bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4314 1.1 skrll loc += sizeof (Elf32_External_Rela);
4315 1.1 skrll
4316 1.1 skrll /* Relocate the .got.plt entry. */
4317 1.1 skrll rela.r_offset = (htab->elf.sgotplt->output_section->vma
4318 1.1 skrll + htab->elf.sgotplt->output_offset
4319 1.1 skrll + got_offset);
4320 1.1 skrll rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4321 1.1 skrll rela.r_addend = plt_offset + 20;
4322 1.1 skrll bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4323 1.1 skrll }
4324 1.1 skrll }
4325 1.1 skrll
4326 1.1 skrll /* Finish up dynamic symbol handling. We set the contents of various
4327 1.1 skrll dynamic sections here. */
4328 1.1 skrll
4329 1.1 skrll bfd_boolean
4330 1.1 skrll _bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4331 1.1 skrll struct bfd_link_info *info,
4332 1.13 christos struct elf_link_hash_entry *h,
4333 1.14 christos Elf_Internal_Sym *sym)
4334 1.1 skrll {
4335 1.1 skrll struct _bfd_sparc_elf_link_hash_table *htab;
4336 1.3 christos const struct elf_backend_data *bed;
4337 1.1 skrll struct _bfd_sparc_elf_link_hash_entry *eh;
4338 1.1 skrll bfd_boolean resolved_to_zero;
4339 1.13 christos
4340 1.13 christos htab = _bfd_sparc_elf_hash_table (info);
4341 1.13 christos BFD_ASSERT (htab != NULL);
4342 1.13 christos bed = get_elf_backend_data (output_bfd);
4343 1.13 christos
4344 1.14 christos eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
4345 1.13 christos
4346 1.1 skrll /* We keep PLT/GOT entries without dynamic PLT/GOT relocations for
4347 1.1 skrll resolved undefined weak symbols in executable so that their
4348 1.1 skrll references have value 0 at run-time. */
4349 1.1 skrll resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
4350 1.1 skrll
4351 1.1 skrll if (h->plt.offset != (bfd_vma) -1)
4352 1.1 skrll {
4353 1.1 skrll asection *splt;
4354 1.1 skrll asection *srela;
4355 1.3 christos Elf_Internal_Rela rela;
4356 1.3 christos bfd_byte *loc;
4357 1.3 christos bfd_vma r_offset, got_offset;
4358 1.3 christos int rela_index;
4359 1.3 christos
4360 1.3 christos /* When building a static executable, use .iplt and
4361 1.3 christos .rela.iplt sections for STT_GNU_IFUNC symbols. */
4362 1.3 christos if (htab->elf.splt != NULL)
4363 1.3 christos {
4364 1.3 christos splt = htab->elf.splt;
4365 1.3 christos srela = htab->elf.srelplt;
4366 1.3 christos }
4367 1.1 skrll else
4368 1.3 christos {
4369 1.3 christos splt = htab->elf.iplt;
4370 1.1 skrll srela = htab->elf.irelplt;
4371 1.1 skrll }
4372 1.1 skrll
4373 1.1 skrll if (splt == NULL || srela == NULL)
4374 1.1 skrll abort ();
4375 1.1 skrll
4376 1.1 skrll /* Fill in the entry in the .rela.plt section. */
4377 1.1 skrll if (htab->is_vxworks)
4378 1.1 skrll {
4379 1.1 skrll /* Work out the index of this PLT entry. */
4380 1.1 skrll rela_index = ((h->plt.offset - htab->plt_header_size)
4381 1.1 skrll / htab->plt_entry_size);
4382 1.1 skrll
4383 1.1 skrll /* Calculate the offset of the associated .got.plt entry.
4384 1.1 skrll The first three entries are reserved. */
4385 1.1 skrll got_offset = (rela_index + 3) * 4;
4386 1.1 skrll
4387 1.1 skrll sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4388 1.3 christos rela_index, got_offset);
4389 1.3 christos
4390 1.1 skrll
4391 1.1 skrll /* On VxWorks, the relocation points to the .got.plt entry,
4392 1.3 christos not the .plt entry. */
4393 1.3 christos rela.r_offset = (htab->elf.sgotplt->output_section->vma
4394 1.1 skrll + htab->elf.sgotplt->output_offset
4395 1.1 skrll + got_offset);
4396 1.1 skrll rela.r_addend = 0;
4397 1.3 christos rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4398 1.3 christos R_SPARC_JMP_SLOT);
4399 1.1 skrll }
4400 1.1 skrll else
4401 1.1 skrll {
4402 1.1 skrll bfd_boolean ifunc = FALSE;
4403 1.1 skrll
4404 1.3 christos /* Fill in the entry in the procedure linkage table. */
4405 1.3 christos rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4406 1.7 christos h->plt.offset, splt->size,
4407 1.3 christos &r_offset);
4408 1.3 christos
4409 1.3 christos if (h == NULL
4410 1.3 christos || h->dynindx == -1
4411 1.3 christos || ((bfd_link_executable (info)
4412 1.3 christos || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4413 1.3 christos && h->def_regular
4414 1.3 christos && h->type == STT_GNU_IFUNC))
4415 1.3 christos {
4416 1.3 christos ifunc = TRUE;
4417 1.3 christos BFD_ASSERT (h == NULL
4418 1.3 christos || (h->type == STT_GNU_IFUNC
4419 1.1 skrll && h->def_regular
4420 1.1 skrll && (h->root.type == bfd_link_hash_defined
4421 1.3 christos || h->root.type == bfd_link_hash_defweak)));
4422 1.3 christos }
4423 1.1 skrll
4424 1.3 christos rela.r_offset = r_offset
4425 1.3 christos + (splt->output_section->vma + splt->output_offset);
4426 1.3 christos if (ABI_64_P (output_bfd)
4427 1.3 christos && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
4428 1.3 christos {
4429 1.3 christos if (ifunc)
4430 1.3 christos {
4431 1.3 christos rela.r_addend = (h->root.u.def.section->output_section->vma
4432 1.3 christos + h->root.u.def.section->output_offset
4433 1.3 christos + h->root.u.def.value);
4434 1.3 christos rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4435 1.3 christos R_SPARC_IRELATIVE);
4436 1.3 christos }
4437 1.3 christos else
4438 1.3 christos {
4439 1.3 christos rela.r_addend = (-(h->plt.offset + 4)
4440 1.1 skrll - splt->output_section->vma
4441 1.1 skrll - splt->output_offset);
4442 1.1 skrll rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4443 1.3 christos R_SPARC_JMP_SLOT);
4444 1.3 christos }
4445 1.3 christos }
4446 1.3 christos else
4447 1.3 christos {
4448 1.3 christos if (ifunc)
4449 1.3 christos {
4450 1.3 christos rela.r_addend = (h->root.u.def.section->output_section->vma
4451 1.3 christos + h->root.u.def.section->output_offset
4452 1.3 christos + h->root.u.def.value);
4453 1.3 christos rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4454 1.3 christos R_SPARC_JMP_IREL);
4455 1.3 christos }
4456 1.3 christos else
4457 1.1 skrll {
4458 1.1 skrll rela.r_addend = 0;
4459 1.1 skrll rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4460 1.1 skrll R_SPARC_JMP_SLOT);
4461 1.1 skrll }
4462 1.1 skrll }
4463 1.1 skrll }
4464 1.1 skrll
4465 1.1 skrll /* Adjust for the first 4 reserved elements in the .plt section
4466 1.1 skrll when setting the offset in the .rela.plt section.
4467 1.1 skrll Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4468 1.1 skrll thus .plt[4] has corresponding .rela.plt[0] and so on. */
4469 1.14 christos
4470 1.1 skrll loc = srela->contents;
4471 1.1 skrll loc += rela_index * bed->s->sizeof_rela;
4472 1.1 skrll bed->s->swap_reloca_out (output_bfd, &rela, loc);
4473 1.1 skrll
4474 1.1 skrll if (!resolved_to_zero && !h->def_regular)
4475 1.1 skrll {
4476 1.1 skrll /* Mark the symbol as undefined, rather than as defined in
4477 1.1 skrll the .plt section. Leave the value alone. */
4478 1.1 skrll sym->st_shndx = SHN_UNDEF;
4479 1.1 skrll /* If the symbol is weak, we do need to clear the value.
4480 1.1 skrll Otherwise, the PLT entry would provide a definition for
4481 1.1 skrll the symbol even if the symbol wasn't defined anywhere,
4482 1.1 skrll and so the symbol would never be NULL. */
4483 1.14 christos if (!h->ref_regular_nonweak)
4484 1.14 christos sym->st_value = 0;
4485 1.1 skrll }
4486 1.1 skrll }
4487 1.13 christos
4488 1.14 christos /* Don't generate dynamic GOT relocation against resolved undefined weak
4489 1.14 christos symbols in an executable. */
4490 1.14 christos if (h->got.offset != (bfd_vma) -1
4491 1.1 skrll && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4492 1.1 skrll && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE
4493 1.1 skrll && !(h->root.type == bfd_link_hash_undefweak
4494 1.1 skrll && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4495 1.1 skrll || resolved_to_zero)))
4496 1.1 skrll {
4497 1.1 skrll asection *sgot;
4498 1.3 christos asection *srela;
4499 1.3 christos Elf_Internal_Rela rela;
4500 1.1 skrll
4501 1.1 skrll /* This symbol has an entry in the GOT. Set it up. */
4502 1.1 skrll
4503 1.1 skrll sgot = htab->elf.sgot;
4504 1.1 skrll srela = htab->elf.srelgot;
4505 1.1 skrll BFD_ASSERT (sgot != NULL && srela != NULL);
4506 1.1 skrll
4507 1.1 skrll rela.r_offset = (sgot->output_section->vma
4508 1.1 skrll + sgot->output_offset
4509 1.1 skrll + (h->got.offset &~ (bfd_vma) 1));
4510 1.1 skrll
4511 1.7 christos /* If this is a -Bsymbolic link, and the symbol is defined
4512 1.3 christos locally, we just want to emit a RELATIVE reloc. Likewise if
4513 1.1 skrll the symbol was forced to be local because of a version file.
4514 1.1 skrll The entry in the global offset table will already have been
4515 1.3 christos initialized in the relocate_section function. */
4516 1.3 christos if (! bfd_link_pic (info)
4517 1.3 christos && h->type == STT_GNU_IFUNC
4518 1.3 christos && h->def_regular)
4519 1.3 christos {
4520 1.3 christos asection *plt;
4521 1.3 christos
4522 1.3 christos /* We load the GOT entry with the PLT entry. */
4523 1.3 christos plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4524 1.3 christos SPARC_ELF_PUT_WORD (htab, output_bfd,
4525 1.3 christos (plt->output_section->vma
4526 1.14 christos + plt->output_offset + h->plt.offset),
4527 1.14 christos htab->elf.sgot->contents
4528 1.3 christos + (h->got.offset & ~(bfd_vma) 1));
4529 1.1 skrll return TRUE;
4530 1.3 christos }
4531 1.3 christos
4532 1.3 christos if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h))
4533 1.3 christos {
4534 1.1 skrll asection *sec = h->root.u.def.section;
4535 1.1 skrll if (h->type == STT_GNU_IFUNC)
4536 1.1 skrll rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4537 1.1 skrll else
4538 1.1 skrll rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
4539 1.1 skrll rela.r_addend = (h->root.u.def.value
4540 1.1 skrll + sec->output_section->vma
4541 1.1 skrll + sec->output_offset);
4542 1.1 skrll }
4543 1.1 skrll else
4544 1.1 skrll {
4545 1.1 skrll rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4546 1.1 skrll rela.r_addend = 0;
4547 1.1 skrll }
4548 1.1 skrll
4549 1.1 skrll SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4550 1.1 skrll sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4551 1.1 skrll sparc_elf_append_rela (output_bfd, srela, &rela);
4552 1.1 skrll }
4553 1.1 skrll
4554 1.1 skrll if (h->needs_copy)
4555 1.1 skrll {
4556 1.1 skrll asection *s;
4557 1.1 skrll Elf_Internal_Rela rela;
4558 1.1 skrll
4559 1.1 skrll /* This symbols needs a copy reloc. Set it up. */
4560 1.1 skrll BFD_ASSERT (h->dynindx != -1);
4561 1.1 skrll
4562 1.13 christos rela.r_offset = (h->root.u.def.value
4563 1.13 christos + h->root.u.def.section->output_section->vma
4564 1.13 christos + h->root.u.def.section->output_offset);
4565 1.13 christos rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4566 1.1 skrll rela.r_addend = 0;
4567 1.1 skrll if (h->root.u.def.section == htab->elf.sdynrelro)
4568 1.1 skrll s = htab->elf.sreldynrelro;
4569 1.1 skrll else
4570 1.1 skrll s = htab->elf.srelbss;
4571 1.1 skrll sparc_elf_append_rela (output_bfd, s, &rela);
4572 1.3 christos }
4573 1.7 christos
4574 1.3 christos /* Mark some specially defined symbols as absolute. On VxWorks,
4575 1.3 christos _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4576 1.1 skrll ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
4577 1.1 skrll if (sym != NULL
4578 1.1 skrll && (h == htab->elf.hdynamic
4579 1.1 skrll || (!htab->is_vxworks
4580 1.1 skrll && (h == htab->elf.hgot || h == htab->elf.hplt))))
4581 1.1 skrll sym->st_shndx = SHN_ABS;
4582 1.1 skrll
4583 1.1 skrll return TRUE;
4584 1.1 skrll }
4585 1.1 skrll
4586 1.1 skrll /* Finish up the dynamic sections. */
4587 1.1 skrll
4588 1.1 skrll static bfd_boolean
4589 1.1 skrll sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4590 1.1 skrll bfd *dynobj, asection *sdyn,
4591 1.1 skrll asection *splt ATTRIBUTE_UNUSED)
4592 1.1 skrll {
4593 1.1 skrll struct _bfd_sparc_elf_link_hash_table *htab;
4594 1.1 skrll const struct elf_backend_data *bed;
4595 1.1 skrll bfd_byte *dyncon, *dynconend;
4596 1.3 christos size_t dynsize;
4597 1.1 skrll int stt_regidx = -1;
4598 1.1 skrll bfd_boolean abi_64_p;
4599 1.1 skrll
4600 1.1 skrll htab = _bfd_sparc_elf_hash_table (info);
4601 1.1 skrll BFD_ASSERT (htab != NULL);
4602 1.1 skrll bed = get_elf_backend_data (output_bfd);
4603 1.1 skrll dynsize = bed->s->sizeof_dyn;
4604 1.1 skrll dynconend = sdyn->contents + sdyn->size;
4605 1.1 skrll abi_64_p = ABI_64_P (output_bfd);
4606 1.1 skrll for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4607 1.1 skrll {
4608 1.13 christos Elf_Internal_Dyn dyn;
4609 1.1 skrll bfd_boolean size;
4610 1.1 skrll
4611 1.1 skrll bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4612 1.3 christos
4613 1.1 skrll if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT)
4614 1.3 christos {
4615 1.3 christos /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4616 1.1 skrll not to the start of the PLT. */
4617 1.1 skrll if (htab->elf.sgotplt)
4618 1.1 skrll {
4619 1.1 skrll dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4620 1.1 skrll + htab->elf.sgotplt->output_offset);
4621 1.1 skrll bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4622 1.1 skrll }
4623 1.1 skrll }
4624 1.1 skrll else if (htab->is_vxworks
4625 1.1 skrll && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4626 1.1 skrll bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4627 1.1 skrll else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4628 1.1 skrll {
4629 1.1 skrll if (stt_regidx == -1)
4630 1.1 skrll {
4631 1.1 skrll stt_regidx =
4632 1.1 skrll _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4633 1.1 skrll if (stt_regidx == -1)
4634 1.1 skrll return FALSE;
4635 1.1 skrll }
4636 1.13 christos dyn.d_un.d_val = stt_regidx++;
4637 1.13 christos bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4638 1.1 skrll }
4639 1.1 skrll else
4640 1.13 christos {
4641 1.13 christos asection *s;
4642 1.13 christos
4643 1.13 christos switch (dyn.d_tag)
4644 1.13 christos {
4645 1.13 christos case DT_PLTGOT:
4646 1.13 christos s = htab->elf.splt;
4647 1.13 christos size = FALSE;
4648 1.13 christos break;
4649 1.13 christos case DT_PLTRELSZ:
4650 1.13 christos s = htab->elf.srelplt;
4651 1.13 christos size = TRUE;
4652 1.13 christos break;
4653 1.13 christos case DT_JMPREL:
4654 1.1 skrll s = htab->elf.srelplt;
4655 1.1 skrll size = FALSE;
4656 1.13 christos break;
4657 1.13 christos default:
4658 1.13 christos continue;
4659 1.1 skrll }
4660 1.13 christos
4661 1.13 christos if (s == NULL)
4662 1.1 skrll dyn.d_un.d_val = 0;
4663 1.13 christos else
4664 1.1 skrll {
4665 1.13 christos if (!size)
4666 1.1 skrll dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4667 1.1 skrll else
4668 1.1 skrll dyn.d_un.d_val = s->size;
4669 1.1 skrll }
4670 1.1 skrll bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4671 1.1 skrll }
4672 1.1 skrll }
4673 1.1 skrll return TRUE;
4674 1.1 skrll }
4675 1.1 skrll
4676 1.1 skrll /* Install the first PLT entry in a VxWorks executable and make sure that
4677 1.1 skrll .rela.plt.unloaded relocations have the correct symbol indexes. */
4678 1.1 skrll
4679 1.1 skrll static void
4680 1.1 skrll sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4681 1.1 skrll {
4682 1.1 skrll struct _bfd_sparc_elf_link_hash_table *htab;
4683 1.3 christos Elf_Internal_Rela rela;
4684 1.1 skrll bfd_vma got_base;
4685 1.1 skrll bfd_byte *loc;
4686 1.1 skrll
4687 1.1 skrll htab = _bfd_sparc_elf_hash_table (info);
4688 1.1 skrll BFD_ASSERT (htab != NULL);
4689 1.1 skrll
4690 1.1 skrll /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4691 1.1 skrll got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4692 1.1 skrll + htab->elf.hgot->root.u.def.section->output_offset
4693 1.3 christos + htab->elf.hgot->root.u.def.value);
4694 1.1 skrll
4695 1.1 skrll /* Install the initial PLT entry. */
4696 1.3 christos bfd_put_32 (output_bfd,
4697 1.1 skrll sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
4698 1.1 skrll htab->elf.splt->contents);
4699 1.3 christos bfd_put_32 (output_bfd,
4700 1.1 skrll sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
4701 1.1 skrll htab->elf.splt->contents + 4);
4702 1.3 christos bfd_put_32 (output_bfd,
4703 1.1 skrll sparc_vxworks_exec_plt0_entry[2],
4704 1.1 skrll htab->elf.splt->contents + 8);
4705 1.3 christos bfd_put_32 (output_bfd,
4706 1.1 skrll sparc_vxworks_exec_plt0_entry[3],
4707 1.1 skrll htab->elf.splt->contents + 12);
4708 1.1 skrll bfd_put_32 (output_bfd,
4709 1.1 skrll sparc_vxworks_exec_plt0_entry[4],
4710 1.3 christos htab->elf.splt->contents + 16);
4711 1.3 christos
4712 1.1 skrll loc = htab->srelplt2->contents;
4713 1.1 skrll
4714 1.1 skrll /* Add an unloaded relocation for the initial entry's "sethi". */
4715 1.1 skrll rela.r_offset = (htab->elf.splt->output_section->vma
4716 1.1 skrll + htab->elf.splt->output_offset);
4717 1.1 skrll rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4718 1.1 skrll rela.r_addend = 8;
4719 1.1 skrll bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4720 1.1 skrll loc += sizeof (Elf32_External_Rela);
4721 1.1 skrll
4722 1.1 skrll /* Likewise the following "or". */
4723 1.1 skrll rela.r_offset += 4;
4724 1.1 skrll rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4725 1.1 skrll bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4726 1.1 skrll loc += sizeof (Elf32_External_Rela);
4727 1.1 skrll
4728 1.1 skrll /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4729 1.1 skrll the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4730 1.1 skrll in which symbols were output. */
4731 1.1 skrll while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4732 1.1 skrll {
4733 1.1 skrll Elf_Internal_Rela rel;
4734 1.1 skrll
4735 1.1 skrll /* The entry's initial "sethi" (against _G_O_T_). */
4736 1.1 skrll bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4737 1.1 skrll rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4738 1.1 skrll bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4739 1.1 skrll loc += sizeof (Elf32_External_Rela);
4740 1.1 skrll
4741 1.1 skrll /* The following "or" (also against _G_O_T_). */
4742 1.1 skrll bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4743 1.1 skrll rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4744 1.1 skrll bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4745 1.1 skrll loc += sizeof (Elf32_External_Rela);
4746 1.1 skrll
4747 1.1 skrll /* The .got.plt entry (against _P_L_T_). */
4748 1.1 skrll bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4749 1.1 skrll rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4750 1.1 skrll bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4751 1.1 skrll loc += sizeof (Elf32_External_Rela);
4752 1.1 skrll }
4753 1.1 skrll }
4754 1.1 skrll
4755 1.1 skrll /* Install the first PLT entry in a VxWorks shared object. */
4756 1.1 skrll
4757 1.1 skrll static void
4758 1.1 skrll sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4759 1.3 christos {
4760 1.3 christos struct _bfd_sparc_elf_link_hash_table *htab;
4761 1.1 skrll unsigned int i;
4762 1.1 skrll
4763 1.3 christos htab = _bfd_sparc_elf_hash_table (info);
4764 1.3 christos BFD_ASSERT (htab != NULL);
4765 1.3 christos
4766 1.3 christos for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4767 1.3 christos bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
4768 1.3 christos htab->elf.splt->contents + i * 4);
4769 1.3 christos }
4770 1.3 christos
4771 1.3 christos /* Finish up local dynamic symbol handling. We set the contents of
4772 1.3 christos various dynamic sections here. */
4773 1.3 christos
4774 1.3 christos static bfd_boolean
4775 1.7 christos finish_local_dynamic_symbol (void **slot, void *inf)
4776 1.3 christos {
4777 1.3 christos struct elf_link_hash_entry *h
4778 1.3 christos = (struct elf_link_hash_entry *) *slot;
4779 1.1 skrll struct bfd_link_info *info
4780 1.1 skrll = (struct bfd_link_info *) inf;
4781 1.13 christos
4782 1.13 christos return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4783 1.13 christos h, NULL);
4784 1.13 christos }
4785 1.13 christos
4786 1.13 christos /* Finish up undefined weak symbol handling in PIE. Fill its PLT entry
4787 1.13 christos here since undefined weak symbol may not be dynamic and may not be
4788 1.13 christos called for _bfd_sparc_elf_finish_dynamic_symbol. */
4789 1.13 christos
4790 1.13 christos static bfd_boolean
4791 1.13 christos pie_finish_undefweak_symbol (struct bfd_hash_entry *bh,
4792 1.13 christos void *inf)
4793 1.13 christos {
4794 1.13 christos struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) bh;
4795 1.13 christos struct bfd_link_info *info = (struct bfd_link_info *) inf;
4796 1.13 christos
4797 1.13 christos if (h->root.type != bfd_link_hash_undefweak
4798 1.13 christos || h->dynindx != -1)
4799 1.13 christos return TRUE;
4800 1.1 skrll
4801 1.1 skrll return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4802 1.1 skrll h, NULL);
4803 1.1 skrll }
4804 1.1 skrll
4805 1.1 skrll bfd_boolean
4806 1.1 skrll _bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4807 1.1 skrll {
4808 1.3 christos bfd *dynobj;
4809 1.1 skrll asection *sdyn;
4810 1.1 skrll struct _bfd_sparc_elf_link_hash_table *htab;
4811 1.15 christos
4812 1.15 christos htab = _bfd_sparc_elf_hash_table (info);
4813 1.15 christos BFD_ASSERT (htab != NULL);
4814 1.15 christos dynobj = htab->elf.dynobj;
4815 1.15 christos
4816 1.15 christos /* We arranged in size_dynamic_sections to put the STT_REGISTER
4817 1.15 christos entries at the end of the dynlocal list, so they came at the end
4818 1.15 christos of the local symbols in the symtab. Except that they aren't
4819 1.15 christos STB_LOCAL, so we need to back up symtab->sh_info. */
4820 1.15 christos if (ABI_64_P (output_bfd)
4821 1.15 christos && elf_hash_table (info)->dynlocal)
4822 1.15 christos {
4823 1.15 christos asection *dynsymsec = bfd_get_linker_section (dynobj, ".dynsym");
4824 1.15 christos struct elf_link_local_dynamic_entry *e;
4825 1.15 christos
4826 1.15 christos for (e = elf_hash_table (info)->dynlocal; e ; e = e->next)
4827 1.15 christos if (e->input_indx == -1)
4828 1.15 christos break;
4829 1.6 christos if (e)
4830 1.1 skrll elf_section_data (dynsymsec->output_section)->this_hdr.sh_info
4831 1.1 skrll = e->dynindx;
4832 1.1 skrll }
4833 1.1 skrll
4834 1.1 skrll sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4835 1.6 christos
4836 1.1 skrll if (elf_hash_table (info)->dynamic_sections_created)
4837 1.1 skrll {
4838 1.1 skrll asection *splt;
4839 1.1 skrll
4840 1.1 skrll splt = htab->elf.splt;
4841 1.1 skrll BFD_ASSERT (splt != NULL && sdyn != NULL);
4842 1.1 skrll
4843 1.1 skrll if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4844 1.1 skrll return FALSE;
4845 1.1 skrll
4846 1.7 christos /* Initialize the contents of the .plt section. */
4847 1.1 skrll if (splt->size > 0)
4848 1.1 skrll {
4849 1.1 skrll if (htab->is_vxworks)
4850 1.1 skrll {
4851 1.1 skrll if (bfd_link_pic (info))
4852 1.1 skrll sparc_vxworks_finish_shared_plt (output_bfd, info);
4853 1.1 skrll else
4854 1.1 skrll sparc_vxworks_finish_exec_plt (output_bfd, info);
4855 1.1 skrll }
4856 1.1 skrll else
4857 1.1 skrll {
4858 1.1 skrll memset (splt->contents, 0, htab->plt_header_size);
4859 1.1 skrll if (!ABI_64_P (output_bfd))
4860 1.7 christos bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
4861 1.13 christos splt->contents + splt->size - 4);
4862 1.13 christos }
4863 1.13 christos }
4864 1.1 skrll
4865 1.1 skrll if (elf_section_data (splt->output_section) != NULL)
4866 1.1 skrll elf_section_data (splt->output_section)->this_hdr.sh_entsize
4867 1.1 skrll = ((htab->is_vxworks || !ABI_64_P (output_bfd))
4868 1.3 christos ? 0 : htab->plt_entry_size);
4869 1.1 skrll }
4870 1.1 skrll
4871 1.1 skrll /* Set the first entry in the global offset table to the address of
4872 1.1 skrll the dynamic section. */
4873 1.1 skrll if (htab->elf.sgot && htab->elf.sgot->size > 0)
4874 1.3 christos {
4875 1.1 skrll bfd_vma val = (sdyn ?
4876 1.1 skrll sdyn->output_section->vma + sdyn->output_offset :
4877 1.3 christos 0);
4878 1.3 christos
4879 1.1 skrll SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
4880 1.1 skrll }
4881 1.3 christos
4882 1.3 christos if (htab->elf.sgot)
4883 1.3 christos elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
4884 1.13 christos SPARC_ELF_WORD_BYTES (htab);
4885 1.13 christos
4886 1.13 christos /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
4887 1.13 christos htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
4888 1.13 christos
4889 1.1 skrll /* Fill PLT entries for undefined weak symbols in PIE. */
4890 1.1 skrll if (bfd_link_pie (info))
4891 1.1 skrll bfd_hash_traverse (&info->hash->table,
4892 1.1 skrll pie_finish_undefweak_symbol,
4893 1.1 skrll info);
4894 1.1 skrll return TRUE;
4895 1.1 skrll }
4896 1.1 skrll
4897 1.1 skrll
4898 1.11 christos /* Set the right machine number for a SPARC ELF file. */
4900 1.11 christos
4901 1.11 christos bfd_boolean
4902 1.11 christos _bfd_sparc_elf_object_p (bfd *abfd)
4903 1.11 christos {
4904 1.13 christos obj_attribute *attrs = elf_known_obj_attributes (abfd)[OBJ_ATTR_GNU];
4905 1.13 christos obj_attribute *hwcaps = &attrs[Tag_GNU_Sparc_HWCAPS];
4906 1.11 christos obj_attribute *hwcaps2 = &attrs[Tag_GNU_Sparc_HWCAPS2];
4907 1.13 christos
4908 1.13 christos unsigned int v9c_hwcaps_mask = ELF_SPARC_HWCAP_ASI_BLK_INIT;
4909 1.13 christos unsigned int v9d_hwcaps_mask = (ELF_SPARC_HWCAP_FMAF
4910 1.13 christos | ELF_SPARC_HWCAP_VIS3
4911 1.13 christos | ELF_SPARC_HWCAP_HPC);
4912 1.13 christos unsigned int v9e_hwcaps_mask = (ELF_SPARC_HWCAP_AES
4913 1.13 christos | ELF_SPARC_HWCAP_DES
4914 1.13 christos | ELF_SPARC_HWCAP_KASUMI
4915 1.13 christos | ELF_SPARC_HWCAP_CAMELLIA
4916 1.13 christos | ELF_SPARC_HWCAP_MD5
4917 1.13 christos | ELF_SPARC_HWCAP_SHA1
4918 1.13 christos | ELF_SPARC_HWCAP_SHA256
4919 1.11 christos | ELF_SPARC_HWCAP_SHA512
4920 1.13 christos | ELF_SPARC_HWCAP_MPMUL
4921 1.11 christos | ELF_SPARC_HWCAP_MONT
4922 1.13 christos | ELF_SPARC_HWCAP_CRC32C
4923 1.13 christos | ELF_SPARC_HWCAP_CBCOND
4924 1.13 christos | ELF_SPARC_HWCAP_PAUSE);
4925 1.13 christos unsigned int v9v_hwcaps_mask = (ELF_SPARC_HWCAP_FJFMAU
4926 1.13 christos | ELF_SPARC_HWCAP_IMA);
4927 1.13 christos unsigned int v9m_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC5
4928 1.13 christos | ELF_SPARC_HWCAP2_MWAIT
4929 1.13 christos | ELF_SPARC_HWCAP2_XMPMUL
4930 1.13 christos | ELF_SPARC_HWCAP2_XMONT);
4931 1.13 christos unsigned int m8_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC6
4932 1.13 christos | ELF_SPARC_HWCAP2_ONADDSUB
4933 1.11 christos | ELF_SPARC_HWCAP2_ONMUL
4934 1.1 skrll | ELF_SPARC_HWCAP2_ONDIV
4935 1.1 skrll | ELF_SPARC_HWCAP2_DICTUNP
4936 1.1 skrll | ELF_SPARC_HWCAP2_FPCMPSHL
4937 1.1 skrll | ELF_SPARC_HWCAP2_RLE
4938 1.13 christos | ELF_SPARC_HWCAP2_SHA3);
4939 1.13 christos
4940 1.13 christos if (ABI_64_P (abfd))
4941 1.13 christos {
4942 1.11 christos unsigned long mach = bfd_mach_sparc_v9;
4943 1.13 christos
4944 1.11 christos if (hwcaps2->i & m8_hwcaps2_mask)
4945 1.13 christos mach = bfd_mach_sparc_v9m8;
4946 1.11 christos else if (hwcaps2->i & v9m_hwcaps2_mask)
4947 1.13 christos mach = bfd_mach_sparc_v9m;
4948 1.11 christos else if (hwcaps->i & v9v_hwcaps_mask)
4949 1.13 christos mach = bfd_mach_sparc_v9v;
4950 1.11 christos else if (hwcaps->i & v9e_hwcaps_mask)
4951 1.1 skrll mach = bfd_mach_sparc_v9e;
4952 1.1 skrll else if (hwcaps->i & v9d_hwcaps_mask)
4953 1.1 skrll mach = bfd_mach_sparc_v9d;
4954 1.1 skrll else if (hwcaps->i & v9c_hwcaps_mask)
4955 1.1 skrll mach = bfd_mach_sparc_v9c;
4956 1.1 skrll else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4957 1.1 skrll mach = bfd_mach_sparc_v9b;
4958 1.1 skrll else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4959 1.1 skrll mach = bfd_mach_sparc_v9a;
4960 1.13 christos return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
4961 1.13 christos }
4962 1.13 christos else
4963 1.13 christos {
4964 1.11 christos if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
4965 1.11 christos {
4966 1.13 christos if (hwcaps2->i & m8_hwcaps2_mask)
4967 1.13 christos return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4968 1.11 christos bfd_mach_sparc_v8plusm8);
4969 1.13 christos else if (hwcaps2->i & v9m_hwcaps2_mask)
4970 1.13 christos return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4971 1.11 christos bfd_mach_sparc_v8plusm);
4972 1.13 christos else if (hwcaps->i & v9v_hwcaps_mask)
4973 1.13 christos return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4974 1.11 christos bfd_mach_sparc_v8plusv);
4975 1.13 christos else if (hwcaps->i & v9e_hwcaps_mask)
4976 1.13 christos return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4977 1.11 christos bfd_mach_sparc_v8pluse);
4978 1.11 christos else if (hwcaps->i & v9d_hwcaps_mask)
4979 1.1 skrll return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4980 1.1 skrll bfd_mach_sparc_v8plusd);
4981 1.1 skrll else if (hwcaps->i & v9c_hwcaps_mask)
4982 1.1 skrll return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4983 1.1 skrll bfd_mach_sparc_v8plusc);
4984 1.1 skrll else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4985 1.1 skrll return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4986 1.1 skrll bfd_mach_sparc_v8plusb);
4987 1.1 skrll else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4988 1.1 skrll return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4989 1.1 skrll bfd_mach_sparc_v8plusa);
4990 1.1 skrll else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
4991 1.1 skrll return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4992 1.1 skrll bfd_mach_sparc_v8plus);
4993 1.1 skrll else
4994 1.1 skrll return FALSE;
4995 1.1 skrll }
4996 1.1 skrll else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
4997 1.1 skrll return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4998 1.1 skrll bfd_mach_sparc_sparclite_le);
4999 1.1 skrll else
5000 1.1 skrll return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
5001 1.1 skrll }
5002 1.1 skrll }
5003 1.1 skrll
5004 1.1 skrll /* Return address for Ith PLT stub in section PLT, for relocation REL
5005 1.1 skrll or (bfd_vma) -1 if it should not be included. */
5006 1.1 skrll
5007 1.1 skrll bfd_vma
5008 1.1 skrll _bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
5009 1.1 skrll {
5010 1.1 skrll if (ABI_64_P (plt->owner))
5011 1.1 skrll {
5012 1.1 skrll bfd_vma j;
5013 1.1 skrll
5014 1.1 skrll i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
5015 1.1 skrll if (i < PLT64_LARGE_THRESHOLD)
5016 1.1 skrll return plt->vma + i * PLT64_ENTRY_SIZE;
5017 1.1 skrll
5018 1.1 skrll j = (i - PLT64_LARGE_THRESHOLD) % 160;
5019 1.6 christos i -= j;
5020 1.6 christos return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
5021 1.6 christos }
5022 1.6 christos else
5023 1.6 christos return rel->address;
5024 1.13 christos }
5025 1.6 christos
5026 1.13 christos /* Merge backend specific data from an object file to the output
5027 1.6 christos object file when linking. */
5028 1.6 christos
5029 1.6 christos bfd_boolean
5030 1.6 christos _bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
5031 1.6 christos {
5032 1.6 christos bfd *obfd = info->output_bfd;
5033 1.6 christos obj_attribute *in_attr, *in_attrs;
5034 1.6 christos obj_attribute *out_attr, *out_attrs;
5035 1.6 christos
5036 1.6 christos if (!elf_known_obj_attributes_proc (obfd)[0].i)
5037 1.6 christos {
5038 1.6 christos /* This is the first object. Copy the attributes. */
5039 1.6 christos _bfd_elf_copy_obj_attributes (ibfd, obfd);
5040 1.6 christos
5041 1.6 christos /* Use the Tag_null value to indicate the attributes have been
5042 1.6 christos initialized. */
5043 1.6 christos elf_known_obj_attributes_proc (obfd)[0].i = 1;
5044 1.6 christos
5045 1.6 christos return TRUE;
5046 1.6 christos }
5047 1.6 christos
5048 1.6 christos in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
5049 1.7 christos out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
5050 1.7 christos
5051 1.7 christos in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS];
5052 1.7 christos out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS];
5053 1.7 christos
5054 1.7 christos out_attr->i |= in_attr->i;
5055 1.7 christos out_attr->type = 1;
5056 1.7 christos
5057 1.6 christos in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS2];
5058 1.13 christos out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS2];
5059 1.6 christos
5060 1.6 christos out_attr->i |= in_attr->i;
5061 1.6 christos out_attr->type = 1;
5062
5063 /* Merge Tag_compatibility attributes and any common GNU ones. */
5064 _bfd_elf_merge_object_attributes (ibfd, info);
5065
5066 return TRUE;
5067 }
5068